A potion to let them change job....without having to re LV them all over again.. -_-;

I don't like the idea BUT.. That being said I'd be open to a potion ONLY if it let you change jobs with in the same role. If you want to change the role you must re LV all over again.

DoL /DoM DPS /DoM Healer / DoW Tanks / DoW Malee DPS / DoW Caster DPS

You can only keep your LV if your changing job with in the role they have alrdy been lved in, if you jump to a new role you most LV them all over again.