Regimens are slow & boring (with newbs). If they could allow us to reserve Stamina/MP(etc) while stacking for that ability YET continue to execute other abilities then it would help a bit.
Then once someone executes the regimen it would take priority over anything you were trying to do.
Something similar to Magic Bursts should be added though. Right now stacking spells feels like you're just skill-chaining. I'm not sure how you could capture the feeling of a Magic Burst in FF14.












