Hotbar L2+R2 question and hotbar sugesstion. (On PS4)

[Bloodrayne2452]

With the release of Heavensward, I have found myself gaining so many new abilities that I'm running out of room on my normal 2 set of hotbars. Basically, before Heavensward, I only had to worry about tapping R1 to quickly switch between two sets. Now however, I'm not even lvl 56 and I'm running out of room and dreading going to set 3, since having more then 2 sets is harder for me to maneuver. I found out about the L2+R2 hotbar when leveling up my scholar/summoner. That is where I put all of my pet only actions such as summons, sustain, rouse, etc.

Now here is my question. Can I set up that L2+R2 hotbar to only appear for summoner/scholar and not appear(leaving a blank hotbar) when I am using my black mage? Yet also make it not appear when using R1 to switch between my other two hotbars? I mean hitting L2+R2 while I'm a blm and seeing pet actions that I can't even use for this job makes it feel like a waste. If there is a way, I just may be looking over it, and if anyone could help with showing me how, I would be very grateful!

Now for the suggestion, I know L1 is set to Auto-Run on the button config options. I checked, and I tried to change it to see what would happen, but I came up disappointed. Now, here is where the suggestion comes in. Is it possible to make the L1 button, a "Change Hotbar Set(Backwards)" and make the R1 button, a "Change Hotbar Set(Forwards)"? Reason being, I never use auto-run, will never use auto, and L1 is just a blank button for me. I would like to be able to use it along with R1 to switch between all my hotbars. Making this 3rd hotbar set a more easy transition for me. With this, I can be in set 2, hit L1 to go back to set 1; instead of having to hit R1 twice to skip of set 3 just to get back to set 1. I know its a long shot, what with the L2+R2 option, and the holding of R1 and picking which hotbar to choose, but it would make playing easier for some people like me.