How do you alter the base eval scripts?

[cryptoknight]

For instance,

I'm trying to put in the Bilingual Quality from RC. All it does is give a player a second Native tongue.

That should be easy enough right? I'll add a language to the character and flag it as N

Except the eval scripts tell me I can't have two Native languages.

Or Born Rich, which allows a character to spend up to 60 BP for money, except the eval script allows you to only have up to 50.

Is there a list of values I can modify via script to increase them? Such as Native Language limits or BP to be spent on money?

Thanks