Basing skill values off of other skills

[Lehmann]

All --

My character, Crom, is an Order of the Lion Cavalier pledged to the Silver. One of the special abilities he gets is a +1 to his Knowledge(nobility) rolls per four levels if they are related to the Silver's court.

I would like to display an entry in the skills section indicating his bonus for Knowledge(The Silver's Court). It would be based on his Knowledge(nobility) and would include the Order of the Lion bonus.

In a similar vein, he gets a bonus to his Handle Animal rolls with regard to his mount. I've also earned a special from my GM such that he gets a separate +1 to Handle Animal rolls regarding this animal, regardless of what his mount is. I'd like to include that on the display.

Neither of these things are skills, precisely, since I can't buy ranks in them directly, but I'd like them to display in the same place.

I'd appreciate any help you can give, and thanks for your time.