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.
From Bun Boss video
from Bun Boss video
From Bun Boss video but slighly modified
Secondary Caster
Fire II = Flare Star
Sharpcast will be Flare Star, Sprint is on a macro tying it to pressing in the Left Stick. Fire 1 and 3 are on the AoE crosshotbar to act as emergency movement buttons with the new instant fire paradox and guaranteed Firestarter. Blizzard 1 is on the bar
Black Mage Cross Hotbar setup based from Bun Boss FFXIV on Youtube as of Jul 14, 2022 (except expanded XHB which I regularly access).