rebel frequency

I apologize for my ignorance, assuming this should be easy, and also in case this was asked before (did a quick check but couldn't find it).

In the link below it's being said that you can now (post-BI) mod the frequency with which rebels appear:

http://p223.ezboard.com/fshoguntotal...ID=30654.topic

My question is: where and how do I mod this?

Do Jambo's instructions help?

https://forums.totalwar.org/vb/showp...7&postcount=53

actually, that's very helpful. I am anything but a modder myself but I should be able to figure this out now.

Thanks for the imput! ~:cheers: