Has anyone worked out how to edit which troops are recruitable?

[theRealBassist]

I'm messing around with the empire troop trees, and I would like to add an additional unit to the recruit pool at the same weight as the basic Imperial Recruit or whatever it is called. Is there a way to do this?

 

[Adonnay]

I have not found a simple solution for that yet but I'm currently working on a mod for this.