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.
First attempt to make panels for MMO mouse with 2 3x4 hotbars and 1 6x2 for utility
3 is for AOE combo > R1 to cycle 1 is Standard Combo (Single Target) > Main R1 to cycle 2 is for Role skills, dash, limit break
Rough layout based on my other caster hotbars. I use 1-5, F1-5 and 2 side mouse buttons.
I'm a left arm amputee - for 1-handed MMO mouse use (Logitech G600).