Unfortunately, that doesn't cut it for me. Those left/right bars can't have keys mapped to them (that I know of) and even if they could, I want 1-9 along with - & + mapped to all abilities I switch to. I'd hate bringing the mouse over to click one ability on the left side then going to the right to click another I need. Keystrokes are much faster and frees my mouse to adjust the camera or more quickly target specific mobs.
So for example, bar 1 will be solo offensive abilities, 2 healing, 3 group offensive abilities and 4 buffs and miscellaneous, less frequently used actions. If I was in a group, I can hit shift+3 to attack and a quick shift+2 to pop a quick heal and hop back. It's what I'm used to and would prefer to remain used to.
Thanks though.