Title says it. Right now, I have 4 Entries for Arma 2 in my Library:
Arma 2, Arma 2 OA, Arma 2 PMC, Arma 2 BAF
Can't you just combine those entries into one?
This way you could also get rid of all those launch options.
It would require that PMC and BAF are registered as "real DLC" (technically) and not as seperate Entries.
I think a lot of Steamusers would welcome that.