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.
Brain likes this
What helps this one's brain remember things
The brain likes this layout
Something that works for me and keeps single target and aoe abilities grouped together in a way that flows for my brain
Secondary Caster
Black Mage Cross Hotbar setup based from Bun Boss FFXIV on Youtube as of Jul 14, 2022 (except expanded XHB which I regularly access).
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"
The hotbar setup I built up after levelling THM into BLM (level 31 at time of creation).
Saving for reference