Import single piece of equipment
Currently, the "Import Equipment from Another Project" command imports all the equipment. Update that function to allow you to choose specific pieces of equipment to import.
For the time, the best workaround for this issue is to open the drawing on the other project and copy-and-paste the specific piece of equipment you want copied. If the equipment is in the database only, you'll need to insert it on the drawing, copy it, then remove it from the drawing.