you can play with mouse and keyboard on PS4 too if you like

with gamepad one of the best things is that semi-target. if you have the tank in target and go with the D pad through the grouplist to another person you can start the heal without pressing X (and make him to your target) and your target will jump back to the tank.

with R2 + L1 you will target the next monster, usefull for stance dance...