Preselect IFC class when adding elements for convenience.

src/bonsai/bonsai/bim/module/model/ui.py

@@ -112,7 +112,9 @@ class LaunchTypeManager(bpy.types.Operator):
         row.menu("BIM_MT_type_manager_menu", text="", icon="PREFERENCES")
 
         row = self.layout.row(align=True)
-        row.operator("bim.launch_add_element", text=f"Create New {AuthoringData.data['ifc_element_type'] or 'Type'}", icon="ADD")
+        row.operator(
+            "bim.add_element", text=f"Create New {AuthoringData.data['ifc_element_type'] or 'Type'}", icon="ADD"
+        ).ifc_class = (AuthoringData.data["ifc_element_type"] or "")
 
         if AuthoringData.data["total_types"]:
             row = self.layout.row(align=True)

src/bonsai/bonsai/bim/module/root/operator.py

@@ -341,16 +341,20 @@ class AddElement(bpy.types.Operator, tool.Ifc.Operator):
     bl_label = "Add Element"
     bl_options = {"REGISTER", "UNDO"}
     bl_description = "Add an IFC physical product, construction type, and more"
+    ifc_class: bpy.props.StringProperty(options={"SKIP_SAVE"})
 
     def invoke(self, context, event):
         return IfcStore.execute_ifc_operator(self, context, is_invoke=True)
 
     def _invoke(self, context, event):
+        props = context.scene.BIMRootProperties
         # For convenience, preselect OBJ representation template if applicable
         if (obj := context.active_object) and obj.type == "MESH":
-            props = context.scene.BIMRootProperties
             props.representation_template = "OBJ"
             props.representation_obj = obj
+        # For convenience, preselect IFC class
+        if self.ifc_class:
+            props.ifc_class = self.ifc_class
         return context.window_manager.invoke_props_dialog(self)
 
     def _execute(self, context):