How do I add the functionality for one character having multiclasses and each multiclass has a different level??. I need this to implement a Final Fantasy 14 guild site while you are still developing an oficial support for it

I guess I could use crafts do like jobs, and disable the class feature. What do you think? I will have to experiment with that.

That's a pretty clover solution. Give it a shot and see how it works for you.

The main problem there being if you used class-based event signups, that could be a bit of a problem. But just use role-based signups, and you're good to go.