How do I find an elements ID number in Revit

Question

When I select an element in Revit I can’t find its ID number anywhere in the properties window. Where can I find it?

Answer

1. You need to select the element first, for example a duct.
2. Click Manage tab > Inquiry panel >  (IDs of Selection).
3. The Elements IDs of Selection dialog box will appear on screen, it should highlight the elements ID.

Note:  If you select more than one element it will list them all as shown in below image.