Access Restriction within an Asset Book

Hi,

We are having a specific requirement which is not fulfilled through Security by Book feature. There is a need to have a further restriction on Access to Assets belonging to certain Asset Categories within a Book.

For Example:

Asset Books is 'BOOK A' which comprises of 3 Asset Categories i.e. 'CAT 01', 'CAT 02' and 'CAT 03'

There are 2 Sets of Users, Set 1 User should only have Access to Asset Category 'CAT 01' whereas other Set of Users should only be able to Access 'CAT 02' and 'CAT 03'

We want to avoid having Multiple Books due to Maintenance Overheads on Period Closure as well as in case of Asset Category Reclassification, it is easier to move Assets from One Category to Another within a Book. Else, we have to perform Manual Retirement in 1 Book and Manual Addition in Another.