Assigning general ledger accounts to categories

There are 2 fixed asset books that contain all fixed assets across 2 ledgers (USD & CAD currencies).  Each fixed asset book is tied to 1 ledger and there are several legal entities within each ledger and each asset book.  Legal entitiy segment is also the balancing segment for gl.  Currently, there is a major and minor category combination that is being used to associate to each asset.  These category combinations are relevant over each legal entitiy.  However, we are unable to change the legal entitiy segment of the gl account code on an asset basis.

example:  Building (major catergory)-Building Iimprovements (minor catergoy) exists in legal entitiy 11, 14, 16 which are all in the US Ledger and all in the USD Asset book.    Asset account coding for this category will show 11.001.0000.17120.00.000.00.0000  where 11 is the legal entity and 17120 is the natural account.  However, for assets belonging to legal 14, the asset account coding needs to be 14.001.0000.17120.00.000.00.0000.