In Revit >> THE BIM TOOLS | TBF Ribbon in GENERAL panel:
A. Id Link : Helps users get the Element ID parameter of a family instance / element from a linked model on the current project.
B. Id Element: Helps users get the Element ID parameter of a family instance / element on the current project.
Click on the tool icon you wish to use.
Click on a single element either from a linked model if the user chose Id Link or an element of the current project if the user chose the Id Element.
A window will appear and the Element ID will be
Pro-Tip: this tool works best by:
a. Assign it to a keyboard shortcut for quicker access of the tool
b. Using it with the OOTB Revit Commands for inter-discipline/project coordination :
. Select by ID – then paste the copied id while opening the other project then
. Selection box (BX) – to create a 3d view for the selected element.