diff --git a/src/blenderbim/blenderbim/bim/module/brick/ui.py b/src/blenderbim/blenderbim/bim/module/brick/ui.py
index bb8898b2c0..568c5a4ab5 100644
--- a/src/blenderbim/blenderbim/bim/module/brick/ui.py
+++ b/src/blenderbim/blenderbim/bim/module/brick/ui.py
@@ -51,7 +51,6 @@ class BIM_PT_brickschema(Panel):
         row = self.layout.row(align=True)
         prop_with_search(row, self.props, "namespace", text="")
         prop_with_search(row, self.props, "brick_equipment_class", text="")
-        row.prop(self.props, "brick_equipment_class", text="")
         row.operator("bim.add_brick", text="", icon="ADD")
 
         row = self.layout.row(align=True)
diff --git a/src/blenderbim/blenderbim/bim/module/model/product.py b/src/blenderbim/blenderbim/bim/module/model/product.py
index 0f5ef1da27..f8d5485cd4 100644
--- a/src/blenderbim/blenderbim/bim/module/model/product.py
+++ b/src/blenderbim/blenderbim/bim/module/model/product.py
@@ -324,6 +324,9 @@ class LoadTypeThumbnails(bpy.types.Operator, tool.Ifc.Operator):
     def _execute(self, context):
         from PIL import Image, ImageDraw
 
+        if bpy.app.background:
+            return
+
         props = bpy.context.scene.BIMModelProperties
         processing = set()
         # Only process at most one paginated class at a time.
diff --git a/src/blenderbim/blenderbim/bim/module/model/profile.py b/src/blenderbim/blenderbim/bim/module/model/profile.py
index 7c948e5213..e7d2101fa9 100644
--- a/src/blenderbim/blenderbim/bim/module/model/profile.py
+++ b/src/blenderbim/blenderbim/bim/module/model/profile.py
@@ -844,7 +844,7 @@ class DumbProfileRecalculator:
                 queue.add((rel.RelatingElement, tool.Ifc.get_object(rel.RelatingElement)))
         joiner = DumbProfileJoiner()
         for element, profile in queue:
-            if element.is_a() in ("IfcColumn", "IfcBeam", "IfcMember") and profile:
+            if profile:
                 joiner.recreate_profile(element, profile)
 
 
diff --git a/src/blenderbim/blenderbim/bim/module/root/prop.py b/src/blenderbim/blenderbim/bim/module/root/prop.py
index 34217ffc4a..95456da780 100644
--- a/src/blenderbim/blenderbim/bim/module/root/prop.py
+++ b/src/blenderbim/blenderbim/bim/module/root/prop.py
@@ -44,9 +44,9 @@ def get_ifc_predefined_types(self, context):
 
 
 def refresh_classes(self, context):
-    IfcClassData.load()
     enum = get_ifc_classes(self, context)
     context.scene.BIMRootProperties.ifc_class = enum[0][0]
+    IfcClassData.load()
 
 
 def refresh_predefined_types(self, context):
diff --git a/src/blenderbim/blenderbim/bim/module/void/operator.py b/src/blenderbim/blenderbim/bim/module/void/operator.py
index 721576867e..8caba417d6 100644
--- a/src/blenderbim/blenderbim/bim/module/void/operator.py
+++ b/src/blenderbim/blenderbim/bim/module/void/operator.py
@@ -52,8 +52,6 @@ class AddOpening(bpy.types.Operator, tool.Ifc.Operator):
             element1, element2 = element2, element1
         if element1.is_a("IfcOpeningElement"):
             return {"FINISHED"}
-        if obj2 not in [o.obj for o in props.openings]:
-            return {"FINISHED"}
         if not obj1.data or not hasattr(obj1.data, "BIMMeshProperties"):
             return {"FINISHED"}
 
diff --git a/src/blenderbim/blenderbim/bim/prop.py b/src/blenderbim/blenderbim/bim/prop.py
index f688ee713a..74490ccad3 100644
--- a/src/blenderbim/blenderbim/bim/prop.py
+++ b/src/blenderbim/blenderbim/bim/prop.py
@@ -195,12 +195,20 @@ def update_attribute_value(self, context):
             self.is_null = False
 
 
-def set_numerical_value(self, new_value):
+def set_int_value(self, new_value):
+    set_numerical_value(self, "int_value", new_value)
+
+
+def set_float_value(self, new_value):
+    set_numerical_value(self, "float_value", new_value)
+
+
+def set_numerical_value(self, value_name, new_value):
     if self.value_min_constraint and new_value < self.value_min:
         new_value = self.value_min
     elif self.value_max_constraint and new_value > self.value_max:
         new_value = self.value_max
-    self[self.get_value_name()] = new_value
+    self[value_name] = new_value
 
 
 class Attribute(PropertyGroup):
@@ -216,14 +224,14 @@ class Attribute(PropertyGroup):
         description=tooltip,
         update=update_attribute_value,
         get=lambda self: int(self.get("int_value", 0)),
-        set=set_numerical_value,
+        set=set_int_value,
     )
     float_value: FloatProperty(
         name="Value",
         description=tooltip,
         update=update_attribute_value,
         get=lambda self: float(self.get("float_value", 0.0)),
-        set=set_numerical_value,
+        set=set_float_value,
     )
     enum_items: StringProperty(name="Value")
     enum_descriptions: CollectionProperty(type=StrProperty)
diff --git a/src/blenderbim/blenderbim/core/root.py b/src/blenderbim/blenderbim/core/root.py
index 5919036335..3bf4171fa1 100644
--- a/src/blenderbim/blenderbim/core/root.py
+++ b/src/blenderbim/blenderbim/core/root.py
@@ -35,6 +35,7 @@ def copy_class(ifc, collector, geometry, root, obj=None):
         geometry.change_object_data(obj, data, is_global=True)
         geometry.rename_object(data, geometry.get_representation_name(new_representation))
         geometry.link(new_representation, data)
+        root.assign_body_styles(new, obj)
     collector.assign(obj)
     if root.is_opening_element(new):
         root.add_tracked_opening(obj)
diff --git a/src/blenderbim/blenderbim/core/tool.py b/src/blenderbim/blenderbim/core/tool.py
index 2b4a7a27c6..2a82947dba 100644
--- a/src/blenderbim/blenderbim/core/tool.py
+++ b/src/blenderbim/blenderbim/core/tool.py
@@ -447,6 +447,7 @@ class Resource:
 @interface
 class Root:
     def add_tracked_opening(cls, obj): pass
+    def assign_body_styles(cls, element, obj): pass
     def copy_representation(cls, source, dest): pass
     def does_type_have_representations(cls, element): pass
     def get_decomposition_relationships(cls, objs): pass
diff --git a/src/blenderbim/blenderbim/tool/root.py b/src/blenderbim/blenderbim/tool/root.py
index b01db25689..bb0e9eaf93 100644
--- a/src/blenderbim/blenderbim/tool/root.py
+++ b/src/blenderbim/blenderbim/tool/root.py
@@ -18,6 +18,7 @@
 
 import bpy
 import ifcopenshell
+import ifcopenshell.util.representation
 import blenderbim.core.tool
 import blenderbim.core.geometry
 import blenderbim.tool as tool
@@ -30,6 +31,23 @@ class Root(blenderbim.core.tool.Root):
         new = bpy.context.scene.BIMModelProperties.openings.add()
         new.obj = obj
 
+    @classmethod
+    def assign_body_styles(cls, element, obj):
+        # Should this even be here? Should it be in the geometry tool?
+        body = ifcopenshell.util.representation.get_representation(element, "Model", "Body", "MODEL_VIEW")
+        if body:
+            [
+                tool.Geometry.run_style_add_style(obj=mat)
+                for mat in tool.Geometry.get_object_materials_without_styles(obj)
+            ]
+            ifcopenshell.api.run(
+                "style.assign_representation_styles",
+                tool.Ifc.get(),
+                shape_representation=body,
+                styles=tool.Geometry.get_styles(obj),
+                should_use_presentation_style_assignment=bpy.context.scene.BIMGeometryProperties.should_use_presentation_style_assignment,
+            )
+
     @classmethod
     def copy_representation(cls, source, dest):
         if dest.is_a("IfcProduct"):
diff --git a/src/blenderbim/test/bim/feature/brick.feature b/src/blenderbim/test/bim/feature/brick.feature
index 18597c8bdc..d7a86cab5e 100644
--- a/src/blenderbim/test/bim/feature/brick.feature
+++ b/src/blenderbim/test/bim/feature/brick.feature
@@ -40,7 +40,10 @@ Scenario: Convert brick project
 Scenario: Assign brick reference
     Given an empty IFC project
     And I press "bim.load_brick_project(filepath='{cwd}/test/files/spaces.ttl')"
-    And I press "bim.view_brick_item(item='https://brickschema.org/schema/Brick#Chiller')"
+    And I set "scene.BIMBrickProperties.namespace" to "https://example.org/digitaltwin#"
+    And I set "scene.BIMBrickProperties.brick_equipment_class" to "https://brickschema.org/schema/Brick#Chiller"
+    And I press "bim.add_brick"
+    And I press "bim.view_brick_class(brick_class='Chiller')"
     And I add a cube
     And the object "Cube" is selected
     And I set "scene.BIMRootProperties.ifc_class" to "IfcChiller"
diff --git a/src/blenderbim/test/bim/feature/debug.feature b/src/blenderbim/test/bim/feature/debug.feature
index 904d69c1ce..7e330c47d5 100644
--- a/src/blenderbim/test/bim/feature/debug.feature
+++ b/src/blenderbim/test/bim/feature/debug.feature
@@ -11,3 +11,17 @@ Scenario: Parse express
     And I press "bim.select_express_file(filepath='{cwd}/test/files/test.exp')"
     When I press "bim.parse_express"
     Then nothing happens
+
+Scenario: Use the inspector - inspect from STEP ID
+    Given an empty Blender session
+    And I press "bim.create_project"
+    When I set "scene.BIMDebugProperties.active_step_id" to "1"
+    And I press "bim.inspect_from_step_id(step_id=1)"
+    Then nothing happens
+
+Scenario: Use the inspector - inspect from object
+    Given an empty Blender session
+    And I press "bim.create_project"
+    When the object "IfcProject/My Project" is selected
+    And I press "bim.inspect_from_object"
+    Then nothing happens
diff --git a/src/blenderbim/test/bim/feature/geometry.feature b/src/blenderbim/test/bim/feature/geometry.feature
index ee0cdedc39..d77f552f50 100644
--- a/src/blenderbim/test/bim/feature/geometry.feature
+++ b/src/blenderbim/test/bim/feature/geometry.feature
@@ -226,19 +226,12 @@ Scenario: Update representation - updating a profiled extrusion
     And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialProfileSet"
     And I press "bim.assign_material"
     And I press "bim.enable_editing_assigned_material"
+    And I press "bim.add_profile_def"
     And the variable "profile_set" is "{ifc}.by_type("IfcMaterialProfileSet")[0].id()"
     And I press "bim.add_profile(profile_set={profile_set})"
-    And the variable "profile" is "{ifc}.by_type("IfcMaterialProfile")[0].id()"
-    And I press "bim.enable_editing_material_set_item(material_set_item={profile})"
-    And I set "active_object.BIMObjectMaterialProperties.profile_classes" to "IfcParameterizedProfileDef"
-    And I set "active_object.BIMObjectMaterialProperties.parameterized_profile_classes" to "IfcCircleProfileDef"
-    And I press "bim.assign_parameterized_profile(ifc_class='IfcCircleProfileDef', material_profile={profile})"
-    And I set "active_object.BIMObjectMaterialProperties.material_set_item_profile_attributes[2].float_value" to "0.2"
-    And I press "bim.edit_material_set_item(material_set_item={profile})"
     And I press "bim.edit_assigned_material(material_set={profile_set})"
     And the variable "type" is "{ifc}.by_type('IfcWallType')[0].id()"
     And I press "bim.assign_type(relating_type={type}, related_object='IfcWall/Cube')"
-    When I press "bim.update_representation(obj='IfcWall/Cube')"
     Then the object "IfcWall/Cube" has a "SweptSolid" representation of "Model/Body/MODEL_VIEW"
 
 Scenario: Get representation IFC parameters
@@ -390,15 +383,9 @@ Scenario: Override duplicate move - copying a profiled extrusion
     And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialProfileSet"
     And I press "bim.assign_material"
     And I press "bim.enable_editing_assigned_material"
+    And I press "bim.add_profile_def"
     And the variable "profile_set" is "{ifc}.by_type("IfcMaterialProfileSet")[0].id()"
     And I press "bim.add_profile(profile_set={profile_set})"
-    And the variable "profile" is "{ifc}.by_type("IfcMaterialProfile")[0].id()"
-    And I press "bim.enable_editing_material_set_item(material_set_item={profile})"
-    And I set "active_object.BIMObjectMaterialProperties.profile_classes" to "IfcParameterizedProfileDef"
-    And I set "active_object.BIMObjectMaterialProperties.parameterized_profile_classes" to "IfcCircleProfileDef"
-    And I press "bim.assign_parameterized_profile(ifc_class='IfcCircleProfileDef', material_profile={profile})"
-    And I set "active_object.BIMObjectMaterialProperties.material_set_item_profile_attributes[2].float_value" to "0.2"
-    And I press "bim.edit_material_set_item(material_set_item={profile})"
     And I press "bim.edit_assigned_material(material_set={profile_set})"
     And the variable "type" is "{ifc}.by_type('IfcWallType')[0].id()"
     And I press "bim.assign_type(relating_type={type}, related_object='IfcWall/Cube')"
diff --git a/src/blenderbim/test/bim/feature/material.feature b/src/blenderbim/test/bim/feature/material.feature
index 35b853c96b..7b4027ce16 100644
--- a/src/blenderbim/test/bim/feature/material.feature
+++ b/src/blenderbim/test/bim/feature/material.feature
@@ -68,7 +68,7 @@ Scenario: Unlink material
     When I press "bim.unlink_material"
     Then the material "Material" is not an IFC material
 
-Scenario: Assign material - Assign a material
+Scenario: Assign material - single material
     Given an empty IFC project
     And I add a cube
     And the object "Cube" is selected
@@ -79,7 +79,58 @@ Scenario: Assign material - Assign a material
     And I press "bim.assign_material"
     Then the object "IfcWall/Cube" has the material "Default"
 
-Scenario: Assign material - Assign a material layer set
+Scenario: Unassign material - single material
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And I press "bim.add_material(obj='')"
+    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterial"
+    And I press "bim.assign_material"
+    When I press "bim.unassign_material"
+    Then nothing happens
+
+Scenario: Enable editing assigned material - single material
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And I press "bim.add_material(obj='')"
+    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterial"
+    And I press "bim.assign_material"
+    When I press "bim.enable_editing_assigned_material"
+    Then nothing happens
+
+Scenario: Disable editing assigned material - single material
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And I press "bim.add_material(obj='')"
+    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterial"
+    And I press "bim.assign_material"
+    And I press "bim.enable_editing_assigned_material"
+    When I press "bim.disable_editing_assigned_material"
+    Then nothing happens
+
+Scenario: Edit assigned material - single material
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And I press "bim.add_material(obj='')"
+    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterial"
+    And I press "bim.assign_material"
+    And I press "bim.enable_editing_assigned_material"
+    And the variable "material_set" is "{ifc}.by_type('IfcMaterial')[0].id()"
+    When I press "bim.edit_assigned_material(material_set={material_set})"
+    Then nothing happens
+
+Scenario: Assign material - material layer set
     Given an empty IFC project
     And I add a cube
     And the object "Cube" is selected
@@ -95,7 +146,78 @@ Scenario: Assign material - Assign a material layer set
     And I press "bim.assign_material"
     Then nothing happens
 
-Scenario: Assign material - Assign a material profile set
+Scenario: Unassign material - material layer set
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And I add an empty
+    And the object "Empty" is selected
+    And I set "scene.BIMRootProperties.ifc_product" to "IfcElementType"
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
+    And I press "bim.assign_class"
+    And I press "bim.add_material(obj='')"
+    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialLayerSet"
+    And I press "bim.assign_material"
+    When I press "bim.unassign_material"
+    Then nothing happens
+
+Scenario: Enable editing assigned material - material layer set
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And I add an empty
+    And the object "Empty" is selected
+    And I set "scene.BIMRootProperties.ifc_product" to "IfcElementType"
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
+    And I press "bim.assign_class"
+    And I press "bim.add_material(obj='')"
+    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialLayerSet"
+    And I press "bim.assign_material"
+    When I press "bim.enable_editing_assigned_material"
+    Then nothing happens
+
+Scenario: Disable editing assigned material - material layer set
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And I add an empty
+    And the object "Empty" is selected
+    And I set "scene.BIMRootProperties.ifc_product" to "IfcElementType"
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
+    And I press "bim.assign_class"
+    And I press "bim.add_material(obj='')"
+    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialLayerSet"
+    And I press "bim.assign_material"
+    And I press "bim.enable_editing_assigned_material"
+    When I press "bim.disable_editing_assigned_material"
+    Then nothing happens
+
+Scenario: Edit assigned material - material layer set
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And I add an empty
+    And the object "Empty" is selected
+    And I set "scene.BIMRootProperties.ifc_product" to "IfcElementType"
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
+    And I press "bim.assign_class"
+    And I press "bim.add_material(obj='')"
+    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialLayerSet"
+    And I press "bim.assign_material"
+    And I press "bim.enable_editing_assigned_material"
+    And the variable "material_set" is "{ifc}.by_type('IfcMaterialLayerSet')[0].id()"
+    When I press "bim.edit_assigned_material(material_set={material_set})"
+    Then nothing happens
+
+Scenario: Assign material - material profile set
     Given an empty IFC project
     And I add a cube
     And the object "Cube" is selected
@@ -111,7 +233,78 @@ Scenario: Assign material - Assign a material profile set
     And I press "bim.assign_material"
     Then nothing happens
 
-Scenario: Assign material - Assign a material constituent set
+Scenario: Unassign material - material profile set
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And I add an empty
+    And the object "Empty" is selected
+    And I set "scene.BIMRootProperties.ifc_product" to "IfcElementType"
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
+    And I press "bim.assign_class"
+    And I press "bim.add_material(obj='')"
+    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialProfileSet"
+    And I press "bim.assign_material"
+    When I press "bim.unassign_material"
+    Then nothing happens
+
+Scenario: Enable editing assigned material - material profile set
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And I add an empty
+    And the object "Empty" is selected
+    And I set "scene.BIMRootProperties.ifc_product" to "IfcElementType"
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
+    And I press "bim.assign_class"
+    And I press "bim.add_material(obj='')"
+    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialProfileSet"
+    And I press "bim.assign_material"
+    When I press "bim.enable_editing_assigned_material"
+    Then nothing happens
+
+Scenario: Disable editing assigned material - material profile set
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And I add an empty
+    And the object "Empty" is selected
+    And I set "scene.BIMRootProperties.ifc_product" to "IfcElementType"
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
+    And I press "bim.assign_class"
+    And I press "bim.add_material(obj='')"
+    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialProfileSet"
+    And I press "bim.assign_material"
+    And I press "bim.enable_editing_assigned_material"
+    When I press "bim.disable_editing_assigned_material"
+    Then nothing happens
+
+Scenario: Edit assigned material - material profile set
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And I add an empty
+    And the object "Empty" is selected
+    And I set "scene.BIMRootProperties.ifc_product" to "IfcElementType"
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
+    And I press "bim.assign_class"
+    And I press "bim.add_material(obj='')"
+    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialProfileSet"
+    And I press "bim.assign_material"
+    And I press "bim.enable_editing_assigned_material"
+    And the variable "material_set" is "{ifc}.by_type('IfcMaterialProfileSet')[0].id()"
+    When I press "bim.edit_assigned_material(material_set={material_set})"
+    Then nothing happens
+
+Scenario: Assign material - material constituent set
     Given an empty IFC project
     And I add a cube
     And the object "Cube" is selected
@@ -122,6 +315,57 @@ Scenario: Assign material - Assign a material constituent set
     And I press "bim.assign_material"
     Then nothing happens
 
+Scenario: Unassign material - material constituent set
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And I press "bim.add_material(obj='')"
+    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialConstituentSet"
+    And I press "bim.assign_material"
+    When I press "bim.unassign_material"
+    Then nothing happens
+
+Scenario: Enable editing assigned material - material constituent set
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And I press "bim.add_material(obj='')"
+    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialConstituentSet"
+    And I press "bim.assign_material"
+    When I press "bim.enable_editing_assigned_material"
+    Then nothing happens
+
+Scenario: Disable editing assigned material - material constituent set
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And I press "bim.add_material(obj='')"
+    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialConstituentSet"
+    And I press "bim.assign_material"
+    And I press "bim.enable_editing_assigned_material"
+    When I press "bim.disable_editing_assigned_material"
+    Then nothing happens
+
+Scenario: Edit assigned material - material constituent set
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And I press "bim.add_material(obj='')"
+    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialConstituentSet"
+    And I press "bim.assign_material"
+    And I press "bim.enable_editing_assigned_material"
+    And the variable "material_set" is "{ifc}.by_type('IfcMaterialConstituentSet')[0].id()"
+    When I press "bim.edit_assigned_material(material_set={material_set})"
+    Then nothing happens
+
 Scenario: Select by material
     Given an empty IFC project
     And I press "bim.load_materials"
diff --git a/src/blenderbim/test/bim/feature/model.feature b/src/blenderbim/test/bim/feature/model.feature
index 51ca4d4fbd..e1a636a0c1 100644
--- a/src/blenderbim/test/bim/feature/model.feature
+++ b/src/blenderbim/test/bim/feature/model.feature
@@ -48,28 +48,10 @@ Scenario: Add type instance - add a mesh where existing instances have changed c
     Then the object "IfcWall/Wall" data is a "Annotation2D" representation of "Plan/Annotation/PLAN_VIEW"
     And the object "IfcWall/Wall.001" data is a "Annotation2D" representation of "Plan/Annotation/PLAN_VIEW"
 
-Scenario: Preview one type on the Construction Type Browser
-    Given an empty IFC project
-    And I load the demo construction library
-    When I set "scene.BIMModelProperties.ifc_class" to "IfcColumnType"
-    And I set "scene.BIMModelProperties.relating_type" to "DEMO2"
-    Then construction type is DEMO2
-    And objects starting with "IfcColumn/" do not exist
-    And the construction type "IfcColumnType"/"DEMO2" has a preview
-
-Scenario: Preview one class on the construction type browser
-    Given an empty IFC project
-    And I load the demo construction library
-    When I display the construction type browser
-    And I set "scene.BIMModelProperties.ifc_class_browser" to "IfcWallType"
-    Then objects starting with "IfcWall/" do not exist
-    And all construction types for "IfcWallType" have a preview
-
 Scenario: Add one type from the Construction Type Browser
     Given an empty IFC project
     And I load the demo construction library
     When I set "scene.BIMModelProperties.ifc_class" to "IfcColumnType"
-    And I set "scene.BIMModelProperties.relating_type" to "DEMO2"
     And I add the construction type
     Then the object "IfcColumn/Column" exists
 
diff --git a/src/blenderbim/test/bim/feature/pset.feature b/src/blenderbim/test/bim/feature/pset.feature
index 11e06af296..b23f6b4797 100644
--- a/src/blenderbim/test/bim/feature/pset.feature
+++ b/src/blenderbim/test/bim/feature/pset.feature
@@ -59,22 +59,8 @@ Scenario: Enable pset editing - material
 
 Scenario: Enable pset editing - profile
     Given an empty IFC project
-    And I add an empty
-    And the object "Empty" is selected
-    And I set "scene.BIMRootProperties.ifc_product" to "IfcElementType"
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
-    And I press "bim.assign_class"
-    And I press "bim.add_material(obj='')"
-    And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialProfileSet"
-    And I press "bim.assign_material"
-    And I press "bim.enable_editing_assigned_material()"
-    And the variable "profile_set" is "{ifc}.by_type('IfcMaterialProfileSet')[-1].id()"
-    And I press "bim.add_profile(profile_set={profile_set})"
-    And the variable "material_profile" is "{ifc}.by_type('IfcMaterialProfile')[-1].id()"
-    And I press "bim.enable_editing_material_set_item(material_set_item={material_profile})"
-    And I set "active_object.BIMObjectMaterialProperties.profile_classes" to "IfcParameterizedProfileDef"
-    And I press "bim.assign_parameterized_profile(ifc_class="IfcIShapeProfileDef", material_profile={material_profile})"
     And I press "bim.load_profiles"
+    And I press "bim.add_profile_def"
     And I set "scene.ProfilePsetProperties.pset_name" to "Pset_ProfileMechanical"
     And I press "bim.add_pset(obj_type='Profile')"
     And the variable "pset" is "{ifc}.by_type('IfcProfileProperties')[-1].id()"
diff --git a/src/blenderbim/test/bim/feature/root.feature b/src/blenderbim/test/bim/feature/root.feature
index 6d3bc39226..91acc14204 100644
--- a/src/blenderbim/test/bim/feature/root.feature
+++ b/src/blenderbim/test/bim/feature/root.feature
@@ -119,19 +119,3 @@ Scenario: Copy a storey
     And the object "IfcBuildingStorey/My Storey" is in the collection "IfcBuildingStorey/My Storey"
     And the object "IfcBuildingStorey/My Storey.001" is in the collection "IfcBuildingStorey/My Storey.001"
     And the collection "IfcBuildingStorey/My Storey.001" is in the collection "IfcBuilding/My Building"
-
-Scenario: Copy an opening
-    Given an empty IFC project
-    And I add a cube
-    When the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
-    And I press "bim.assign_class"
-    And I add a cube
-    And the object "Cube" is selected
-    And additionally the object "IfcWall/Cube" is selected
-    And I press "bim.add_opening(opening='Cube', obj='IfcWall/Cube')"
-    And the object "IfcOpeningElement/Cube" is selected
-    And I duplicate the selected objects
-    Then the object "IfcOpeningElement/Cube" and "IfcOpeningElement/Cube.001" are different elements
-    And the object "IfcWall/Cube" has a boolean difference by "IfcOpeningElement/Cube"
-    And the object "IfcWall/Cube" has a boolean difference by "IfcOpeningElement/Cube.001"
diff --git a/src/blenderbim/test/bim/feature/type.feature b/src/blenderbim/test/bim/feature/type.feature
index bcde86e305..b274ab2bf4 100644
--- a/src/blenderbim/test/bim/feature/type.feature
+++ b/src/blenderbim/test/bim/feature/type.feature
@@ -72,15 +72,9 @@ Scenario: Assign type - assign to a type with a material profile set
     And I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialProfileSet"
     And I press "bim.assign_material"
     And I press "bim.enable_editing_assigned_material"
+    And I press "bim.add_profile_def"
     And the variable "profile_set" is "{ifc}.by_type("IfcMaterialProfileSet")[0].id()"
     And I press "bim.add_profile(profile_set={profile_set})"
-    And the variable "profile" is "{ifc}.by_type("IfcMaterialProfile")[0].id()"
-    And I press "bim.enable_editing_material_set_item(material_set_item={profile})"
-    And I set "active_object.BIMObjectMaterialProperties.profile_classes" to "IfcParameterizedProfileDef"
-    And I set "active_object.BIMObjectMaterialProperties.parameterized_profile_classes" to "IfcCircleProfileDef"
-    And I press "bim.assign_parameterized_profile(ifc_class='IfcCircleProfileDef', material_profile={profile})"
-    And I set "active_object.BIMObjectMaterialProperties.material_set_item_profile_attributes[2].float_value" to "0.2"
-    And I press "bim.edit_material_set_item(material_set_item={profile})"
     And I press "bim.edit_assigned_material(material_set={profile_set})"
     When the variable "type" is "{ifc}.by_type('IfcWallType')[0].id()"
     And I press "bim.assign_type(relating_type={type}, related_object='IfcWall/Cube')"
diff --git a/src/blenderbim/test/bim/feature/void.feature b/src/blenderbim/test/bim/feature/void.feature
index 7e901d23f4..cdba961635 100644
--- a/src/blenderbim/test/bim/feature/void.feature
+++ b/src/blenderbim/test/bim/feature/void.feature
@@ -5,22 +5,20 @@ Feature: Void
 Scenario: Add an opening
     Given an empty IFC project
     And I add a cube
-    When the object "Cube" is selected
+    And the object "Cube" is selected
     And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
     And I press "bim.assign_class"
     And I add a cube
     And the object "IfcWall/Cube" is selected
     And additionally the object "Cube" is selected
-    And I press "bim.add_opening(opening='Cube', obj='IfcWall/Cube')"
-    Then the object "IfcOpeningElement/Cube" is an "IfcOpeningElement"
-    And the object "IfcOpeningElement/Cube" should display as "WIRE"
-    And the object "IfcWall/Cube" has a boolean difference by "IfcOpeningElement/Cube"
+    When I press "bim.add_opening"
+    Then the object "Cube" does not exist
     And the object "IfcWall/Cube" is voided by "Cube"
 
 Scenario: Add an opening on an opening
     Given an empty IFC project
     And I add a cube
-    When the object "Cube" is selected
+    And the object "Cube" is selected
     And I set "scene.BIMRootProperties.ifc_class" to "IfcOpeningElement"
     And I press "bim.assign_class"
     And I add a cube
@@ -29,286 +27,150 @@ Scenario: Add an opening on an opening
     And I press "bim.assign_class"
     And the object "IfcOpeningElement/Cube" is selected
     And additionally the object "IfcOpeningElement/Cube.001" is selected
-    And I press "bim.add_opening(opening='IfcOpeningElement/Cube', obj='IfcOpeningElement/Cube.001')"
-    Then the object "IfcOpeningElement/Cube" is an "IfcOpeningElement"
-    And the object "IfcOpeningElement/Cube" should display as "WIRE"
-    And the object "IfcOpeningElement/Cube" is not a void
-    Then the object "IfcOpeningElement/Cube.001" is an "IfcOpeningElement"
-    And the object "IfcOpeningElement/Cube.001" should display as "WIRE"
-    Then the object "IfcOpeningElement/Cube.001" has no boolean difference by "IfcOpeningElement/Cube"
-    And the object "IfcOpeningElement/Cube.001" is not voided by "Cube"
-
-Scenario: Add an opening on a null object
-    Given an empty IFC project
-    And I add a cube
-    When the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcOpeningElement"
-    And I press "bim.assign_class"
-    And I deselect all objects
-    And I press "bim.add_opening(opening='IfcOpeningElement/Cube')"
-    Then the object "IfcOpeningElement/Cube" is an "IfcOpeningElement"
-    And the object "IfcOpeningElement/Cube" should display as "WIRE"
-    And the object "IfcOpeningElement/Cube" is not a void
+    When I press "bim.add_opening"
+    Then the object "IfcOpeningElement/Cube" is not a void
+    And the object "IfcOpeningElement/Cube.001" is not a void
 
 Scenario: Add an opening on a non IFC object
     Given an empty IFC project
     And I add a cube
-    When the object "Cube" is selected
+    And the object "Cube" is selected
     And I set "scene.BIMRootProperties.ifc_class" to "IfcOpeningElement"
     And I press "bim.assign_class"
     And I add a cube
     And the object "Cube" is selected
-    And I press "bim.add_opening(opening='IfcOpeningElement/Cube', obj='Cube')"
-    Then the object "IfcOpeningElement/Cube" is an "IfcOpeningElement"
-    And the object "IfcOpeningElement/Cube" should display as "WIRE"
-    And the object "IfcOpeningElement/Cube" is not a void
+    When I press "bim.add_opening"
+    Then the object "IfcOpeningElement/Cube" is not a void
     And the object "Cube" is not an IFC element
 
-Scenario: Add an opening with a null object
+Scenario: Add an opening using the BIM tool
     Given an empty IFC project
     And I add a cube
-    When the object "Cube" is selected
+    And the object "Cube" is selected
     And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
     And I press "bim.assign_class"
-    And I deselect all objects
-    And I press "bim.add_opening(obj='IfcWall/Cube')"
-    Then the object "IfcWall/Cube" is an "IfcWall"
-    And the object "IfcWall/Cube" is not voided
+    And I press "bim.add_potential_opening"
+    And the object "Opening" is selected
+    And additionally the object "IfcWall/Cube" is selected
+    When I press "bim.add_opening"
+    Then the object "Opening" does not exist
+    And the object "IfcWall/Cube" is voided by "Opening"
+
+Scenario: Show openings
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And I press "bim.add_potential_opening"
+    And the object "Opening" is selected
+    And additionally the object "IfcWall/Cube" is selected
+    And I press "bim.add_opening"
+    And the object "IfcWall/Cube" is selected
+    When I press "bim.show_openings"
+    Then the object "IfcOpeningElement/Opening" is an "IfcOpeningElement"
+    And the object "IfcWall/Cube" is voided by "Opening"
+
+Scenario: Hide openings
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And I press "bim.add_potential_opening"
+    And the object "Opening" is selected
+    And additionally the object "IfcWall/Cube" is selected
+    And I press "bim.add_opening"
+    And the object "IfcWall/Cube" is selected
+    And I press "bim.show_openings"
+    When I press "bim.hide_openings"
+    Then the object "IfcOpeningElement/Opening" does not exist
+
+Scenario: Edit openings
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And I press "bim.add_potential_opening"
+    And the object "Opening" is selected
+    And additionally the object "IfcWall/Cube" is selected
+    And I press "bim.add_opening"
+    And the object "IfcWall/Cube" is selected
+    And I press "bim.show_openings"
+    When the object "IfcOpeningElement/Opening" is moved to "1,0,0"
+    And I press "bim.edit_openings"
+    Then the object "IfcOpeningElement/Opening" does not exist
+    And the object "IfcWall/Cube" is voided by "Opening"
 
 Scenario: Add an opening to Element B with a void that already voids Element A
     Given an empty IFC project
     And I add a cube
-    When the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
-    And I press "bim.assign_class"
-    And I add a cube
-    And I press "bim.add_opening(opening='Cube', obj='IfcWall/Cube')"
-    And I add a cube
     And the object "Cube" is selected
     And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
     And I press "bim.assign_class"
-    And I press "bim.add_opening(opening='IfcOpeningElement/Cube', obj='IfcWall/Cube.001')"
-    Then the object "IfcWall/Cube" is not voided
-    And the object "IfcWall/Cube" has no boolean difference by "IfcOpeningElement/Cube"
-    And the object "IfcWall/Cube.001" is voided by "Cube"
-    And the object "IfcWall/Cube.001" has a boolean difference by "IfcOpeningElement/Cube"
-
-Scenario: Remove an opening
-    Given an empty IFC project
     And I add a cube
-    When the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
-    And I press "bim.assign_class"
-    And I add a cube of size "1" at "1,0,0"
     And the object "Cube" is selected
+    And I press "bim.assign_class"
+    And I press "bim.add_potential_opening"
+    And the object "Opening" is selected
     And additionally the object "IfcWall/Cube" is selected
-    And I press "bim.add_opening(opening='Cube', obj='IfcWall/Cube')"
+    And I press "bim.add_opening"
+    And the object "IfcWall/Cube" is selected
+    And I press "bim.show_openings"
+    When the object "IfcOpeningElement/Opening" is selected
+    And additionally the object "IfcWall/Cube.001" is selected
+    And I press "bim.add_opening"
+    Then the object "IfcWall/Cube" is voided by "Opening"
+    And the object "IfcWall/Cube.001" is not voided by "Opening"
+
+Scenario: Remove opening
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And I press "bim.add_potential_opening"
+    And the object "Opening" is selected
+    And additionally the object "IfcWall/Cube" is selected
+    And I press "bim.add_opening"
+    And the object "IfcWall/Cube" is selected
+    And I press "bim.show_openings"
+    When the object "IfcOpeningElement/Opening" is selected
     And the variable "opening_id" is "IfcStore.get_file().by_type('IfcOpeningElement')[0].id()"
-    And I press "bim.remove_opening(opening_id={opening_id}, obj='IfcWall/Cube')"
-    Then the object "IfcWall/Cube" has no boolean difference by "IfcOpeningElement/Cube"
-    And the object "IfcWall/Cube" is not voided by "Cube"
-    And the object "Cube" is not an IFC element
+    And I press "bim.remove_opening(opening_id={opening_id})"
+    Then the object "Opening" is not an IFC element
+    And the object "IfcWall/Cube" is not voided by "Opening"
 
-Scenario: Remove a non dynamic opening manually
+Scenario: Remove opening - using deletion
     Given an empty IFC project
     And I add a cube
-    When the object "Cube" is selected
+    And the object "Cube" is selected
     And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
     And I press "bim.assign_class"
-    And I add a cube of size "1" at "1,0,0"
+    And I press "bim.add_potential_opening"
+    And the object "Opening" is selected
+    And additionally the object "IfcWall/Cube" is selected
+    And I press "bim.add_opening"
     And the object "IfcWall/Cube" is selected
-    And additionally the object "Cube" is selected
-    And I press "bim.add_opening(opening='Cube', obj='IfcWall/Cube')"
-    And the object "IfcWall/Cube" is selected
-    And the variable "representation" is "IfcStore.get_file().by_type('IfcWall')[0].Representation.Representations[1].id()"
-    And I press "bim.switch_representation(ifc_definition_id={representation}, should_reload=True)"
-    Then the object "IfcWall/Cube" has no boolean difference by "IfcOpeningElement/Cube"
-    And the object "IfcWall/Cube" has "16" vertices
-    And the variable "opening_id" is "IfcStore.get_file().by_type('IfcOpeningElement')[0].id()"
-    When I press "bim.remove_opening(opening_id={opening_id}, obj='IfcWall/Cube')"
-    Then the object "IfcWall/Cube" has "8" vertices
-    And the object "Cube" is not an IFC element
+    And I press "bim.show_openings"
+    When the object "IfcOpeningElement/Opening" is selected
+    And I delete the selected objects
+    Then the object "Opening" does not exist
+    And the object "IfcWall/Cube" is not voided by "Opening"
 
-Scenario: Remove an opening using deletion
+Scenario: Remove opening - indirectly by deleting its building element
     Given an empty IFC project
     And I add a cube
-    When the object "Cube" is selected
+    And the object "Cube" is selected
     And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
     And I press "bim.assign_class"
-    And I add a cube of size "1" at "1,0,0"
+    And I press "bim.add_potential_opening"
+    And the object "Opening" is selected
+    And additionally the object "IfcWall/Cube" is selected
+    And I press "bim.add_opening"
     And the object "IfcWall/Cube" is selected
-    And additionally the object "Cube" is selected
-    And I press "bim.add_opening(opening='Cube', obj='IfcWall/Cube')"
-    And the object "IfcOpeningElement/Cube" is selected
+    And I press "bim.show_openings"
+    When the object "IfcWall/Cube" is selected
     And I delete the selected objects
-    Then the object "IfcWall/Cube" has no boolean difference by "IfcOpeningElement/Cube"
-    And the object "IfcWall/Cube" is not voided by "Cube"
-
-Scenario: Remove and opening indirectly by deleting its building Element
-    Given an empty IFC project
-    And I add a cube
-    When the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
-    And I press "bim.assign_class"
-    And I add a cube of size "1" at "1,0,0"
-    And the object "IfcWall/Cube" is selected
-    And additionally the object "Cube" is selected
-    And I press "bim.add_opening(opening='Cube', obj='IfcWall/Cube')"
-    And the object "IfcWall/Cube" is selected
-    And I delete the selected objects
-    Then the object "Cube" is not an IFC element
-
-Scenario: Add a filling
-    Given an empty IFC project
-    And I add a cube
-    When the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcOpeningElement"
-    And I press "bim.assign_class"
-    And I add a cube
-    And the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcDoor"
-    And I press "bim.assign_class"
-    And the object "IfcOpeningElement/Cube" is selected
-    And I press "bim.add_filling(opening='IfcOpeningElement/Cube', obj='IfcDoor/Cube')"
-    Then the object "IfcOpeningElement/Cube" is an "IfcOpeningElement"
-    And the object "IfcOpeningElement/Cube" should display as "WIRE"
-    And the object "IfcDoor/Cube" is an "IfcDoor"
-    And the void "IfcOpeningElement/Cube" is filled by "Cube"
-
-Scenario: Add a filling on a null object
-    Given an empty IFC project
-    And I add a cube
-    When the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcDoor"
-    And I press "bim.assign_class"
-    And the object "IfcDoor/Cube" is selected
-    And I press "bim.add_filling(obj='IfcDoor/Cube')"
-    Then the object "IfcDoor/Cube" is an "IfcDoor"
-    And the object "IfcDoor/Cube" is not a filling
-
-Scenario: Add a filling on itself
-    Given an empty IFC project
-    And I add a cube
-    When the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcOpeningElement"
-    And I press "bim.assign_class"
-    And the object "IfcOpeningElement/Cube" is selected
-    And I press "bim.add_filling(opening='IfcOpeningElement/Cube', obj='IfcOpeningElement/Cube')"
-    Then the object "IfcOpeningElement/Cube" is an "IfcOpeningElement"
-    And the void "IfcOpeningElement/Cube" is not filled by "Cube"
-    And the object "IfcOpeningElement/Cube" is not a filling
-
-Scenario: Add a filling with a non IFC object
-    Given an empty IFC project
-    And I add a cube
-    When the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcOpeningElement"
-    And I press "bim.assign_class"
-    And I add a cube
-    And the object "IfcOpeningElement/Cube" is selected
-    And I press "bim.add_filling(opening='IfcOpeningElement/Cube', obj='Cube')"
-    Then the object "Cube" is not an IFC element
-    And the object "IfcOpeningElement/Cube" is an "IfcOpeningElement"
-    And the void "IfcOpeningElement/Cube" is not filled by "Cube"
-
-Scenario: Add a filling on a non IFC object
-    Given an empty IFC project
-    And I add a cube
-    When the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcDoor"
-    And I press "bim.assign_class"
-    And I add a cube
-    And the object "Cube" is selected
-    And I press "bim.add_filling(opening='Cube', obj='IfcDoor/Cube')"
-    Then the object "Cube" is not an IFC element
-    And the object "IfcDoor/Cube" is an "IfcDoor"
-
-Scenario: Add a filling on Opening B with a filling that already fills Opening A
-    Given an empty IFC project
-    And I add a cube
-    When the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcOpeningElement"
-    And I press "bim.assign_class"
-    And I add a cube
-    And the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcDoor"
-    And I press "bim.assign_class"
-    And I press "bim.add_filling(opening='IfcOpeningElement/Cube', obj='IfcDoor/Cube')"
-    And I add a cube
-    And the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcOpeningElement"
-    And I press "bim.assign_class"
-    And I press "bim.add_filling(opening='IfcOpeningElement/Cube.001', obj='IfcDoor/Cube')"
-    Then the void "IfcOpeningElement/Cube" is not filled by "Cube"
-    And the void "IfcOpeningElement/Cube.001" is filled by "Cube"
-
-Scenario: Remove a filling
-    Given an empty IFC project
-    And I add a cube
-    When the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcOpeningElement"
-    And I press "bim.assign_class"
-    And I add a cube
-    And the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcDoor"
-    And I press "bim.assign_class"
-    And I press "bim.add_filling(opening='IfcOpeningElement/Cube', obj='IfcDoor/Cube')"
-    And I press "bim.remove_filling(obj='IfcDoor/Cube')"
-    Then the object "IfcOpeningElement/Cube" is an "IfcOpeningElement"
-    And the object "IfcDoor/Cube" is an "IfcDoor"
-    And the void "IfcOpeningElement/Cube" is not filled by "Cube"
-
-Scenario: Remove a filling which is not an IFC object
-    Given an empty IFC project
-    And I add a cube
-    When the object "Cube" is selected
-    And I press "bim.remove_filling(obj='Cube')"
-    Then the object "Cube" is not an IFC element
-
-Scenario: Remove a filling which is not a filling
-    Given an empty IFC project
-    And I add a cube
-    When the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcDoor"
-    And I press "bim.assign_class"
-    And the object "IfcDoor/Cube" is not a filling
-    And I press "bim.remove_filling(obj='IfcDoor/Cube')"
-    Then the object "IfcDoor/Cube" is an "IfcDoor"
-    And the object "IfcDoor/Cube" is not a filling
-
-Scenario: Remove a filling which is null
-    Given an empty IFC project
-    When I press "bim.remove_filling()"
-    Then nothing happens
-
-Scenario: Remove a filling using deletion on the filling
-    Given an empty IFC project
-    And I add a cube
-    When the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcOpeningElement"
-    And I press "bim.assign_class"
-    And I add a cube
-    And the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcDoor"
-    And I press "bim.assign_class"
-    And I press "bim.add_filling(opening='IfcOpeningElement/Cube', obj='IfcDoor/Cube')"
-    And the object "IfcDoor/Cube" is selected
-    And I delete the selected objects
-    Then the object "IfcOpeningElement/Cube" is an "IfcOpeningElement"
-    And the void "IfcOpeningElement/Cube" is not filled by "Cube"
-
-Scenario: Remove a filling using deletion on the opening
-    Given an empty IFC project
-    And I add a cube
-    When the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcOpeningElement"
-    And I press "bim.assign_class"
-    And I add a cube
-    And the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcDoor"
-    And I press "bim.assign_class"
-    And I press "bim.add_filling(opening='IfcOpeningElement/Cube', obj='IfcDoor/Cube')"
-    And the object "IfcOpeningElement/Cube" is selected
-    And I delete the selected objects
-    Then the object "IfcDoor/Cube" is an "IfcDoor"
-    And the object "IfcDoor/Cube" is not a filling
+    Then the object "Opening" is not an IFC element
diff --git a/src/blenderbim/test/bim/test_feature.py b/src/blenderbim/test/bim/test_feature.py
index 0050024908..2b310fc151 100644
--- a/src/blenderbim/test/bim/test_feature.py
+++ b/src/blenderbim/test/bim/test_feature.py
@@ -351,22 +351,6 @@ def the_object_name_should_display_as_mode(name, mode):
     assert obj.display_type == mode
 
 
-@then(parsers.parse('the object "{name1}" has a boolean difference by "{name2}"'))
-def the_object_name1_has_a_boolean_difference_by_name2(name1, name2):
-    obj = the_object_name_exists(name1)
-    has_mod = any((m for m in obj.modifiers if m.type == "BOOLEAN" and m.object and m.object.name == name2))
-    assert has_mod, "No boolean found"
-
-
-@then(parsers.parse('the object "{name1}" has no boolean difference by "{name2}"'))
-def the_object_name1_has_no_boolean_difference_by_name2(name1, name2):
-    try:
-        the_object_name1_has_a_boolean_difference_by_name2(name1, name2)
-    except AssertionError:
-        return
-    assert False, "A boolean was found"
-
-
 @then(parsers.parse('the object "{name}" is voided by "{void}"'))
 def the_object_name_is_voided_by_void(name, void):
     ifc = IfcStore.get_file()
@@ -390,7 +374,7 @@ def the_object_name_is_not_voided(name):
     assert not element.HasOpenings, "A void was found"
 
 
-@then(parsers.parse('the object "{name}" is not a void'))
+@then(parsers.parse('the object "{name}" is a void'))
 def the_object_name_is_a_void(name):
     ifc = IfcStore.get_file()
     obj = the_object_name_exists(name)
@@ -592,48 +576,6 @@ def the_object_name_has_no_modifiers(name):
     assert len(the_object_name_exists(name).modifiers) == 0
 
 
-@then(parsers.parse('the construction type "{ifc_class}"/"{relating_type}" has a preview'))
-def the_construction_type_has_a_preview(ifc_class, relating_type):
-    if "preview_constr_types" not in AuthoringData.data:
-        assert False, "There are no previews loaded"
-    preview_constr_types = AuthoringData.data["preview_constr_types"]
-    if ifc_class not in preview_constr_types:
-        assert False, f"Construction class {ifc_class} has no available previews"
-    relating_type_id = AuthoringData.relating_type_id_by_name(ifc_class, relating_type)
-    if relating_type_id is None:
-        assert False, f"No construction type {ifc_class}/{relating_type} was found"
-    if relating_type_id not in preview_constr_types[ifc_class]:
-        assert False, f"Construction type {ifc_class}/{relating_type} has no available previews"
-    preview_data = preview_constr_types[ifc_class][relating_type_id]
-    if "icon_id" not in preview_data:
-        assert False, f"Construction type {ifc_class}/{relating_type} has a preview, but no assigned icon_id"
-    icon_id = preview_data["icon_id"]
-    if not isinstance(icon_id, int):
-        assert False, f"Construction type {ifc_class}/{relating_type} has an invalid icon_id {icon_id}"
-    # Note: icon_id must be > 0 in UI mode, but asset_generate_preview() doesn't work headlessly -> skipping for now
-    # if icon_id == 0:
-    #     assert False, f'Construction type {ifc_class}/{relating_type} has the default null value for icon_id'
-    assert True
-
-
-@then("there is a Construction Type preview")
-def there_is_a_construction_type_preview():
-    props = bpy.context.scene.BIMModelProperties
-    assert props.icon_id > 0, f"There isn't a Construction Type preview"
-
-
-@then(parsers.parse('all construction types for "{ifc_class}" have a preview'))
-def all_construction_types_have_a_preview(ifc_class):
-    if "preview_constr_types" not in AuthoringData.data:
-        assert False, "There are no previews loaded"
-    preview_constr_types = AuthoringData.data["preview_constr_types"]
-    if ifc_class not in preview_constr_types:
-        assert False, f"Construction class {ifc_class} has no available previews"
-    constr_class_occurrences = AuthoringData.constr_class_entities(ifc_class)
-    for constr_class_entity in constr_class_occurrences:
-        the_construction_type_has_a_preview(ifc_class, constr_class_entity.Name)
-
-
 @given("I load the demo construction library")
 @when("I load the demo construction library")
 def i_add_a_construction_library():
diff --git a/src/blenderbim/test/core/test_root.py b/src/blenderbim/test/core/test_root.py
index 92d7e94562..f5a9494048 100644
--- a/src/blenderbim/test/core/test_root.py
+++ b/src/blenderbim/test/core/test_root.py
@@ -57,6 +57,7 @@ class TestCopyClass:
         geometry.get_representation_name("new_representation").should_be_called().will_return("name")
         geometry.rename_object("data", "name").should_be_called()
         geometry.link("new_representation", "data").should_be_called()
+        root.assign_body_styles("element", "obj").should_be_called()
         geometry.duplicate_object_data("obj").should_be_called().will_return("data")
         collector.assign("obj").should_be_called()
         root.is_opening_element("element").should_be_called().will_return(False)