I don't know if you all know about the context-sensitive buttons in this game but they're great.

After you've selected your spell, Cure for instance. When it prompts you for a target and the AoE box is up left and right will only select applicable targets on your screen. Right now I have Enemy set as my targeting type while in a group, when I cast cure it allows me to select party members regardless. The targeting mode is adaptable. Also when it prompts you for a target, the emote button toggles AoE. Also when you're on your skill bar the same emote button can start a battle regimen. Watch out though because there are known problems with battle regimens screwing with some controllers.