Fix #4533. Add convenience link to launch type manager when no types exist.

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

@@ -54,8 +54,10 @@ class LaunchTypeManager(bpy.types.Operator):
         props.type_page = 1
         if get_ifc_class(None, context):
             ifc_class = props.ifc_class or AuthoringData.data["ifc_element_type"]
-            props.type_class = ifc_class
-            bpy.ops.bim.load_type_thumbnails(ifc_class=ifc_class, offset=0, limit=9)
+        else:
+            ifc_class = AuthoringData.data["ifc_element_type"]
+        props.type_class = ifc_class
+        bpy.ops.bim.load_type_thumbnails(ifc_class=ifc_class, offset=0, limit=9)
         return context.window_manager.invoke_popup(self, width=550)
 
     def draw(self, context):

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

@@ -522,11 +522,12 @@ class BimToolUI:
                 row.label(text=f"No {AuthoringData.data['ifc_element_type']} Found", icon="ERROR")
                 row = cls.layout.row()
                 row.prop(cls.props, "type_name")
-                row = cls.layout.row()
+                row = cls.layout.row(align=True)
                 op = row.operator(
                     "bim.add_default_type", icon="ADD", text=f"Add {AuthoringData.data['ifc_element_type']}"
                 )
                 op.ifc_element_type = AuthoringData.data["ifc_element_type"]
+                row.operator("bim.launch_type_manager", icon=tool.Blender.TYPE_MANAGER_ICON, text="")
             else:
                 row.label(text="No Element Types Found", icon="ERROR")
                 row.operator("bim.launch_type_manager", icon=tool.Blender.TYPE_MANAGER_ICON, text="Launch Type Manager")