Asset Categories LOV in Asset Additions form

Hello,

We have 2 Corp books and each has tax book assigned to it.  There are two responsibilities and they are secured by book using FA:Security Profile.

Corp Book A has 10 asset categories.

Corp book B has 5 asset categories.  The "name" of these 5 asset categories are same which are assigned to Corp Book A.

Now, when user goes and tries to add new asset in Corp Book B, and clicks on Category LOV, he sees all the 10 categories which are assigned of Corp Book A including 5 asset categories which are also assigned to Corp Book B.

Questions:

1.) How to restrict asset categories assigned to Corp book B in "Category" LOV when user is in resp assinged to Corp Book B?