Triggers that affect Allies/Enemies only?

Is there an effect that affects only teammates or only enemies?

Right now if you wanted to (for example) sent 100 food tribute to each ally as an effect, you have to make 7 triggers where the condition is diplomatic state = ally, and effect is send 100 food tribute. Only the triggers where the player is an ally would have its conditions met and fire. So if you want to have this tribute 100 food trigger for each player in an 8 player game, you would have to make 7 such triggers for each player.

Is there (if not it would be nice to have) an effect such that a trigger affects only allies/enemies?