Succession Traits: How to make a trait that acts like bastard?

[Orinsul]

Can you make a new trait that removes a character from the line of succession like being a bastard or a bishop do? I was expected bastard to have a disinherit = yes or something line in it, but it doesnt.
Only id like to make an event for a son running off to join an order and currently i cant see how to do it in a way that it would matter at all.

 

[Magdaki]

I'm also trying to find a way to remove people from succession for my "Secret Imprisonment" plot. I haven't found anything yet. If I do I'll post it here. If you do please post your solution.

Thanks!!

EDIT: Just for fun, I had my event add the bastard trait. Interestingly enough, it didn't remove him the line of succession. So there must be something else at work internally with regards to succession. My guess is that internally once succession is determined it does recalculate it until something happens which could cause it to recalculate, like a child being born...

Hmmm...