WowAce

What is the enhancement in mind? How should it look and feel?
I have the addon set up with linked Bargroups for buffs and debuffs for my Target and Focus, which I have growing upwards from their respective unit frames. Generally speaking I want to see buffs and debuffs on hostile targets, but only debuffs on friendly ones, so it would be great if there was a bargroup setting for disposition of unit (ie. Friendly/Hostile/Both) so when you target a friendly unit in a raid (often by accident as a tank) you don't get a screenfull of their raid buffs.

Please provide any additional information below.
Implementation as an extra filter category would be ideal.