RAD Job Requirements, requiring RAD Jobs

[efrate]

I'm working on a class based progression ala something like Der Langrisser, with each of 4 characters having several branching paths that build off of one another.  Messing with rad a bit I was wondering if I can make RAD classes as requirement for other classes. 

In the Base Rad3 example pokeytax has, how would I go about making say the astrologist class be a requisite to another class, like a space mage or some such?  Is this possible, and if so how would I do it?

In addition, is there a list somewhere of what hex values represent steps in the story, since I want to incorporate job class available only upon progression, etc? 

Please and thanks.

[Tea]

I was under the impression RAD jobs share joblevel and JP with their 'twin', so that would imply a "no" as answer to your question.