DWG Tap import (how to ungroup all elevations) Help please!

i am trying to add in a tap to my design, i have managed to import a perrin and rowe tap onto my design, however it is showing it in all elevations. For now i am only creating a plan view so only need a birds eye view of the tap. I cant figure out how to ungroup all of the elevation so i can position the birds eye in place without the other views getting in the way. can anyone help please?