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.
1st: 1,2,3,4,5,Q,E,R,F,C,V,T 2nd: same but shift+
Taking a first go at a layout. Working to minimize swaps between bars needed to perform the opening and filler rotation.
Single target on bar 2, AOE on bar 3.
Have dreadwinder on bar 1 to monitor cooldown.
1(1-9) main rotation bar, 2(Shift 1-9) aoe bar 3 Bar coolddown bar (Reawaken 'R', Serpent's Ire 'V', Slither 'G', Uncoiled Fury 'E, one of empty slots will be X for potion, normaly wouldn't put duty actions on bar but so much empty why not')
4 (C1-4, Arm
Although I tend to put oGCDs almost exclusively on the dpad buttons and GCDs on the main buttons (triangle, square, etc) for VPR I felt like I'd try to keep the swapping oGCD buttons on the right hand as well since they are essentially part of the combo a