This may just be a bug but when I create a new extrusion, I am able to select as may profiles as i want. however, after it is created, if i select edit feature (on the original extrusion) i can only modify the selection profile by a single profile. if for instance i need to add 2 profiles to my selection, i have to edit feature, select one of them, hit enter, then select edit feature again, and select the other profile i would like to add. this gets very annoying when i want to add 5+ Profiles to the selection.