It would be very nice, if under the Hotbar Settings > Cross tab there was a list of check boxes for all 8 cross hotbars that we could manually select for the R1/RB hotbar rotation.
This would allow situational hotbars to be created and essentially stay hidden and jumped over unless selected manually with R1+DPAD/FACE buttons. Simply by going into the Hotbars settings menu we could add another already full bar to the rotation for raids or whatever. Change from 1+2 default to 1-4 or 3+4 etc. 5+8, whatever.
It would also stop newly learned abilities from generating new hotbars and annoyingly being thrown into the hotbar rotation if those new bars remained unselected in the menu.
Of course all 8 would be selected by default and empty bars should still be jumped over regardless, as they are now.
Tangentially, the R1+R2 combo functioning as a Tab through targets is SUPER ANNOYING and I want to be able to disable that. It's completely redundant.