A limited set of actions can assigned via macro commands. Incompatible actions are ommited from the generated macro. Also note that Macros are limited to 15 lines each.
Sage
Waiting for the new action images to get added in to fully get this good
Make sure to change Double tap L2 to "Cross Hotbar 4 - Left" and Double tap R2 to "Cross Hotbar 4 - Right"
Damage on right, single-target heals on left, buffs in center, AOE heals on double-right.
From Bun Boss video