You can now duplicate existing types in the type manager

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

@@ -99,6 +99,8 @@ class LaunchTypeManager(bpy.types.Operator):
             op.ifc_class = relating_type["ifc_class"]
             op.relating_type_id = relating_type["id"]
 
+            op = row.operator("bim.duplicate_type", icon="COPYDOWN", text="")
+            op.element = relating_type["id"]
             op = row.operator("bim.remove_type", icon="X", text="")
             op.element = relating_type["id"]
 

src/blenderbim/blenderbim/bim/module/type/__init__.py

@@ -22,6 +22,7 @@ from . import ui, prop, operator
 classes = (
     operator.AssignType,
     operator.DisableEditingType,
+    operator.DuplicateType,
     operator.EnableEditingType,
     operator.RemoveType,
     operator.SelectSimilarType,

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

@@ -23,6 +23,7 @@ import ifcopenshell.api
 import blenderbim.tool as tool
 import blenderbim.core.geometry
 import blenderbim.core.type as core
+import blenderbim.core.root
 from blenderbim.bim.ifc import IfcStore
 from ifcopenshell.api.type.data import Data
 from ifcopenshell.api.geometry.data import Data as GeometryData
@@ -182,3 +183,23 @@ class RemoveType(bpy.types.Operator, tool.Ifc.Operator):
             tool.Ifc.unlink(obj=obj)
             bpy.data.objects.remove(obj)
         return {"FINISHED"}
+
+
+class DuplicateType(bpy.types.Operator, tool.Ifc.Operator):
+    bl_idname = "bim.duplicate_type"
+    bl_label = "Duplicate Type"
+    bl_options = {"REGISTER"}
+    element: bpy.props.IntProperty()
+
+    def _execute(self, context):
+        element = tool.Ifc.get().by_id(self.element)
+        obj = tool.Ifc.get_object(element)
+        if not obj:
+            return {"FINISHED"}
+        new_obj = obj.copy()
+        if obj.data:
+            new_obj.data = obj.data.copy()
+        new = blenderbim.core.root.copy_class(tool.Ifc, tool.Collector, tool.Geometry, tool.Root, obj=new_obj)
+        new.Name += " Copy"
+        bpy.ops.bim.load_type_thumbnails(ifc_class=new.is_a())
+        return {"FINISHED"}