Instead of opening a part from the custom properties and then going to the parts custom properties, simply select the part inside the assembly and update the parts custom properties using the get model custom properties.

● Using this function on the Menu Bar click TSDUtilities as shown below, then select the Icon.

  ● Alternately use the  button located on the Command Manager Tool Bar under TSDUtilities tab as shown below.

                                                                                                                                                Video Demonstration Link

                                                                                                                  Click this link to go to the TSDUtilities Toolbar TSDUtilities Toolbar