CLASS LEVELS AND SKILLS (VX ACE)

Hi everybody! I have a question. So I know there are a couple scripts out there for VXA that allow for job levels (or class levels if you will). And I'm familiar with YanFly's script. But what I'd like to know is it possible to create a system where the characters skills based on their job levels? It might be possible to do it through eventing and just checking a variable that holds the job level, but I'd rather overhaul the skill learning system.

You could make it so you have to be a Lvl 5 Monk AND a Lvl 5 White Mage to learn a group healing spell, for example. Also the player could gain levels independent of the class. Any thoughts on this?