I run emergency egress photometrics quite often. My clients would like to see the actual quantities of fixtures instead of the individual heads. There are usually two heads per fixture. I can group them together and have them show up as a single fixture in the schedule, but this only works when every fixture is aimed exactly the same way.
What I would love to have is the ability to keep all of my egress fixtures (with 2 heads each) in the schedule as a "whole" fixture and be able to aim each one of their heads independently.
The aiming directions of the heads end up being the symbol, however. I would prefer a generic symbol that masks the aiming directions or goes over the top of them that becomes the symbol you see in the fixture schedule. This way the different aiming angles won't create new lines on the fixture schedule.