Tips/tools to help track group buffs on players?

[TheBlob]

Hello!

My main character is a magician so I posted here, but the question would also apply to priests. In raids, one of my roles is to keep everyone Aegis of Ro'ed (33 DS + 33 FR) against Fire AoE mobs. Since I do not know who is in which group, I find it hard to follow who received the buff and who didn't.

Right now, my "Soandso is enveloped by the Aegis of Ro" message is mixed with all spells dans melee damage, so the first step would be to create a window just for this message, but again I think I can manage if there are 3 or 4 groups, but with more people it will be hard to keep track of, especially if I need to recast on everyone every 6 min.

Any tips? Tools?

Thanks!