yeah, it's done in the web admin...
I believe in the media director where you put the floorplan in..
It's been a long time since I played with that.. and i'm upgrading my servers right now..
I remember there was a drop down list to select the type of device, security, lighting, etc.
then there were "squares" beside the floorplan... each square was color coded, and you drag the squars onto the floorplan