Your mission, if you choose to accept it, is to design a lvl 1-MAX set of hotbars using the absolute MINIMUM of keybinds for which ever class/job you choose.

I will be leaving this game soon. It was GREAT, however, I no longer have enough precise control of my hands/fingers to hit the key binds, and return my fingers to the beginning position.

It has occurred to me that I am not the only disabled person out here. There are dozens of terrific UI setups, but they all rely on being able to swiftly hit Ctrl, Alt, Shift, AND a key bound key, then move accurately to another. Not so tough at low levels where careful key binds (especially the NUM keys) limit the number of actions in a rotation. But by 40 and up???? Key board and mouse is almost like typing for a living.
Controller is a bit better but still requiring swift precise movements....

So, if you like a challenge, take your best shot! Use Macros when possible to limit fast, flying, fingers....