I use 2 cross hotbars, using R1 to cycle between them. I also use expanded hotbar, but I only use 1 side of it, and I use it across all jobs, with mounts, LB, macros, and other such things. I also use a horizontal hotbar as a timer bar, so I can see things, that may not be readily available.

Cross Hotbar1


Cross Hotbar2


Expanded