diff --git a/src/blenderbim/blenderbim/bim/module/root/data.py b/src/blenderbim/blenderbim/bim/module/root/data.py
index fc72d15a32..123440327c 100644
--- a/src/blenderbim/blenderbim/bim/module/root/data.py
+++ b/src/blenderbim/blenderbim/bim/module/root/data.py
@@ -79,6 +79,11 @@ class IfcClassData:
         names = [d.name() for d in declarations]
         if ifc_product == "IfcElementType" and tool.Ifc.get_schema() in ("IFC2X3", "IFC4"):
             names.extend(("IfcDoorStyle", "IfcWindowStyle"))
+        if ifc_product == "IfcElement":
+            names.remove("IfcOpeningElement")
+            if tool.Ifc.get_schema() == "IFC4":
+                # Yeah, weird isn't it.
+                names.remove("IfcOpeningStandardCase")
         version = tool.Ifc.get_schema()
         return [(c, c, (get_entity_doc(version, c) or {}).get("description", "")) for c in sorted(names)]
 
diff --git a/src/blenderbim/test/bim/feature/material.feature b/src/blenderbim/test/bim/feature/material.feature
index 8b5127edd7..3e850021bb 100644
--- a/src/blenderbim/test/bim/feature/material.feature
+++ b/src/blenderbim/test/bim/feature/material.feature
@@ -141,7 +141,7 @@ Scenario: Assign material - material layer set
     When I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialLayerSet"
     And I press "bim.assign_material"
     Then the object "IfcWallType/Empty" does not have the material "Default"
-    And the object "IfcWallType/Empty" has a "0.1" thick layered material containing the material "Default"
+    And the object "IfcWallType/Empty" has a "100" thick layered material containing the material "Default"
 
 Scenario: Unassign material - material layer set
     Given an empty IFC project
@@ -173,9 +173,9 @@ Scenario: Unassign material - material layer set usages will not be removed
     And the object "IfcWall/Cube" is selected
     When the variable "type" is "{ifc}.by_type('IfcWallType')[0].id()"
     And I press "bim.assign_type(relating_type={type}, related_object='IfcWall/Cube')"
-    Then the object "IfcWall/Cube" has a "0.1" thick layered material containing the material "Default"
+    Then the object "IfcWall/Cube" has a "100" thick layered material containing the material "Default"
     When I press "bim.unassign_material"
-    Then the object "IfcWall/Cube" has a "0.1" thick layered material containing the material "Default"
+    Then the object "IfcWall/Cube" has a "100" thick layered material containing the material "Default"
 
 Scenario: Enable editing assigned material - material layer set
     Given an empty IFC project
@@ -448,4 +448,4 @@ Scenario: Remove material set layer
     And I press "bim.remove_layer(layer={ifc}.by_id({material_set}).MaterialLayers[0].id())"
     And I press "bim.add_layer(layer_set={material_set})"
     When I press "bim.remove_layer(layer={ifc}.by_id({material_set}).MaterialLayers[0].id())"
-    Then nothing happens
\ No newline at end of file
+    Then nothing happens
diff --git a/src/blenderbim/test/bim/feature/root.feature b/src/blenderbim/test/bim/feature/root.feature
index 9b80a2419a..16e7adb964 100644
--- a/src/blenderbim/test/bim/feature/root.feature
+++ b/src/blenderbim/test/bim/feature/root.feature
@@ -82,18 +82,6 @@ Scenario: Assign a spatial class to a cube already in a collection
     And the collection "IfcSpace/Cube" is in the collection "IfcBuildingStorey/My Storey"
     And the object "IfcSpace/Cube" has a "Tessellation" representation of "Model/Body/MODEL_VIEW"
 
-Scenario: Assign an opening class to a cube
-    Given an empty IFC project
-    And I add a cube
-    When the object "Cube" is selected
-    And I set "scene.BIMRootProperties.ifc_product" to "IfcElement"
-    And I set "scene.BIMRootProperties.ifc_class" to "IfcOpeningElement"
-    And I press "bim.assign_class"
-    Then the object "IfcOpeningElement/Cube" is an "IfcOpeningElement"
-    And the object "IfcOpeningElement/Cube" should display as "WIRE"
-    And the object "IfcOpeningElement/Cube" is in the collection "IfcOpeningElements"
-    And the object "IfcOpeningElement/Cube" has a "Tessellation" representation of "Model/Body/MODEL_VIEW"
-
 Scenario: Assign a class to a cube in a collection
     Given an empty IFC project
     And I add a cube
diff --git a/src/blenderbim/test/bim/feature/type.feature b/src/blenderbim/test/bim/feature/type.feature
index ec6994c864..1e02167b6b 100644
--- a/src/blenderbim/test/bim/feature/type.feature
+++ b/src/blenderbim/test/bim/feature/type.feature
@@ -87,10 +87,10 @@ Scenario: Assign type - assign to a type with a material layer set, which automa
     And I press "bim.assign_type(relating_type={type}, related_object='IfcWall/Cube')"
     Then the object "IfcWall/Cube" has a "SweptSolid" representation of "Model/Body/MODEL_VIEW"
     And the object "IfcWall/Cube" has the material "Default"
-    And the object "IfcWall/Cube" has a "0.1" thick layered material containing the material "Default"
+    And the object "IfcWall/Cube" has a "100" thick layered material containing the material "Default"
     And the object "IfcWall/Cube" dimensions are "2,.1,3"
 
-Scenario: Assign type - assign to a dfferent type with a material layer set
+Scenario: Assign type - assign to a different type with a material layer set
     Given an empty IFC project
     And I add a cube
     And the object "Cube" is selected
@@ -116,16 +116,16 @@ Scenario: Assign type - assign to a dfferent type with a material layer set
     And the variable "layer_set" is "ifcopenshell.util.element.get_material({ifc}.by_id({type2})).id()"
     And the variable "layer" is "{ifc}.by_id({layer_set}).MaterialLayers[0].id()"
     And I press "bim.enable_editing_material_set_item(material_set_item={layer})"
-    And I set "active_object.BIMObjectMaterialProperties.material_set_item_attributes[0].float_value" to "0.2"
+    And I set "active_object.BIMObjectMaterialProperties.material_set_item_attributes[0].float_value" to "200"
     And I press "bim.edit_material_set_item(material_set_item={layer})"
     And I press "bim.edit_assigned_material(material_set={layer_set})"
     When I press "bim.assign_type(relating_type={type}, related_object='IfcWall/Cube')"
     Then the object "IfcWall/Cube" has a "SweptSolid" representation of "Model/Body/MODEL_VIEW"
     And the object "IfcWall/Cube" has the material "Default"
-    And the object "IfcWall/Cube" has a "0.1" thick layered material containing the material "Default"
+    And the object "IfcWall/Cube" has a "100" thick layered material containing the material "Default"
     And the object "IfcWall/Cube" dimensions are "2,.1,3"
     When I press "bim.assign_type(relating_type={type2}, related_object='IfcWall/Cube')"
-    Then the object "IfcWall/Cube" has a "0.2" thick layered material containing the material "Default"
+    Then the object "IfcWall/Cube" has a "200" thick layered material containing the material "Default"
     And the object "IfcWall/Cube" dimensions are "2,.2,3"
 
 Scenario: Assign type - assign to a type with a material profile set
diff --git a/src/blenderbim/test/bim/feature/void.feature b/src/blenderbim/test/bim/feature/void.feature
index cdba961635..9052fb8409 100644
--- a/src/blenderbim/test/bim/feature/void.feature
+++ b/src/blenderbim/test/bim/feature/void.feature
@@ -15,34 +15,6 @@ Scenario: Add an 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
-    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 set "scene.BIMRootProperties.ifc_class" to "IfcOpeningElement"
-    And I press "bim.assign_class"
-    And the object "IfcOpeningElement/Cube" is selected
-    And additionally the object "IfcOpeningElement/Cube.001" is selected
-    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
-    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
-    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 using the BIM tool
     Given an empty IFC project
     And I add a cube