You know what else would help with not having to "play DDR," as someone put it? Being able to put an ability on the bar more than once. If one or two of your #4 slots was your basic attack again, there'd be no need to dash all the way back to bar one, slot one. Heck, even if it took the same amount of SP to put it on again (0, in the case of basic attacks) I know there are some abilities I'd like to have redundant copies of from time to time, just so I don't have to play around with the action bars.