It sounds like you are looking to save space on your x-bar. As a game pad user myself who has cleared turn 5 as a Paladin, I can say that you really only need two sets of skills. Share skill bars 7/8 for all classes for skills like your chochobo and return. Also make skill bars 7 and 8 available for when you sheathe your weapon. When you unsheathe your weapon, use skill bars 1/2. This gives you 4 bars, but only having to have to switch between 2 at any given time.