I also found out that you CAN display additional hotbars when using the Cross Hotbar on a PC. I currently have hotbar 10, a verticle hotbar, visible in the space between my chat window and the cross hotbar. I put all my buffs in it, so I can keep track of their cooldowns after I use them via macros. I also have enough space to put some other buttons in there I can click with a mouse but don't use very often, like a class change equipment set to Fisherman