Adding a Trait to a Civic

[criZp]

So there was a guy who said it would be cool if Firaxis added a colonial governor at some point in the frontier pass DLC, and I agree with that. And had an idea for such a governor that I think could work, but I want him to unlock at the colonialism-civic, rather than at the start of the game.

Currently the Governors table doesn't have a Civic-column, but it has a Trait-column. However, there is no CivicTraits-table where a trait could connect to a civic. Is it possible to make a new table and have the game actually use it? Or update the Governors table with a Civic-column?