A spatial tree's icon can now be hovered to show the class and clicked to select children

src/blenderbim/blenderbim/bim/module/spatial/operator.py

@@ -228,9 +228,15 @@ class SelectDecomposedElements(bpy.types.Operator, tool.Ifc.Operator):
     bl_idname = "bim.select_decomposed_elements"
     bl_label = "Select Children"
     bl_options = {"REGISTER", "UNDO"}
+    container: bpy.props.IntProperty()
+    ifc_class: bpy.props.StringProperty()
+
+    @classmethod
+    def description(cls, context, operator):
+        return f"Select all elements contained in {operator.ifc_class}"
 
     def _execute(self, context):
-        core.select_decomposed_elements(tool.Spatial)
+        core.select_decomposed_elements(tool.Spatial, container=tool.Ifc.get().by_id(self.container))
 
 
 class SetDefaultContainer(bpy.types.Operator, tool.Ifc.Operator):
@@ -238,6 +244,7 @@ class SetDefaultContainer(bpy.types.Operator, tool.Ifc.Operator):
     bl_label = "Set Default Container"
     bl_options = {"REGISTER", "UNDO"}
     container: bpy.props.IntProperty()
+    bl_description = "Set this as the default container that all new elements will be contained in"
 
     def _execute(self, context):
         core.set_default_container(tool.Spatial, container=tool.Ifc.get().by_id(self.container))

src/blenderbim/blenderbim/bim/module/spatial/ui.py

@@ -115,11 +115,10 @@ class BIM_PT_spatial_decomposition(Panel):
                 text=f"Default: {SpatialDecompositionData.data['default_container']}",
                 icon="OUTLINER_COLLECTION",
             )
-            row.operator("bim.import_spatial_decomposition", icon="FILE_REFRESH", text="")
         else:
             row = self.layout.row(align=True)
             row.label(text="Warning: No Default Container", icon="ERROR")
-            row.operator("bim.import_spatial_decomposition", icon="FILE_REFRESH", text="")
+        row.operator("bim.import_spatial_decomposition", icon="FILE_REFRESH", text="")
 
         if self.props.active_container:
             ifc_definition_id = self.props.active_container.ifc_definition_id if self.props.active_container else 0
@@ -134,7 +133,11 @@ class BIM_PT_spatial_decomposition(Panel):
                 row.enabled = False
             op = row.operator("bim.set_default_container", icon="OUTLINER_COLLECTION", text="Set Default")
             op.container = ifc_definition_id
-            row.operator("bim.select_decomposed_elements", icon="HIDE_OFF", text=f"Isolate {self.props.active_container.ifc_class}")
+            row.operator("bim.select_decomposed_elements", icon="FULLSCREEN_EXIT", text="Isolate")
+            row.operator("bim.select_decomposed_elements", icon="HIDE_OFF", text="")
+            row.operator("bim.select_decomposed_elements", icon="HIDE_ON", text="")
+            row.operator("bim.select_decomposed_elements", icon="OBJECT_DATA", text="")
+            row.operator("bim.select_decomposed_elements", icon="RESTRICT_SELECT_OFF", text="")
             op = row.operator("bim.delete_container", icon="X", text="")
             op.container = ifc_definition_id
 
@@ -198,18 +201,22 @@ class BIM_UL_containers_manager(UIList):
             row.label(text="", icon="BLANK1")
         if item.ifc_class == "IfcProject":
             row.label(text="", icon="FILE")
-        elif item.ifc_class == "IfcSite":
-            row.label(text="", icon="WORLD")
-        elif item.ifc_class == "IfcBuilding":
-            row.label(text="", icon="HOME")
-        elif item.ifc_class == "IfcBuildingStorey":
-            row.label(text="", icon="LINENUMBERS_OFF")
-        elif item.ifc_class == "IfcSpace":
-            row.label(text="", icon="ANTIALIASED")
-        elif "Part" in item.ifc_class:
-            row.label(text="", icon="MOD_FLUID")
         else:
-            row.label(text="", icon="META_PLANE")
+            icon = {
+                "IfcSite": "WORLD",
+                "IfcBuilding": "HOME",
+                "IfcBuildingStorey": "LINENUMBERS_OFF",
+                "IfcSpace": "ANTIALIASED",
+                "IfcFacilityPart": "MOD_FLUID",
+                "IfcBridgePart": "MOD_FLUID",
+                "IfcFacilityPartCommon": "MOD_FLUID",
+                "IfcMarinePart": "MOD_FLUID",
+                "IfcRailwayPart": "MOD_FLUID",
+                "IfcRoadPart": "MOD_FLUID",
+            }.get(item.ifc_class, "META_PLANE")
+            op = row.operator("bim.select_decomposed_elements", icon=icon, text="", emboss=False)
+            op.ifc_class = item.ifc_class
+            op.container = item.ifc_definition_id
 
 
 class BIM_UL_elements(UIList):

src/blenderbim/blenderbim/core/spatial.py

@@ -152,10 +152,8 @@ def delete_container(
     spatial.import_spatial_decomposition()
 
 
-def select_decomposed_elements(spatial: tool.Spatial) -> None:
-    container = spatial.get_active_container()
-    if container:
-        spatial.select_products(spatial.get_decomposed_elements(container))
+def select_decomposed_elements(spatial: tool.Spatial, container: ifcopenshell.entity_instance) -> None:
+    spatial.select_products(spatial.get_decomposed_elements(container))
 
 
 def generate_space(ifc: tool.Ifc, model: tool.Model, root: tool.Root, spatial: tool.Spatial, type: tool.Type) -> None: