Is it possible to change default book accounts at a category assignment level?

Summary:

Content (required):

My users are wanting to map the following default BOOK accounts to specific CATEGORY assignments.

• Net Book Value Retired Gain
• Net Book Value Retired Loss
• Proceeds of Sale Gain
• Proceeds of Sale Loss
• Cost of Removal Gain
• Cost of Removal Loss
• Deferred Depreciation Expense
• Deferred Depreciation Reserve

Currently Books are setup at the Company level, but we have the need to track some assets to Cost of Revenue and some to OPEX. By setting Gain/Loss accounts by Company, all default gain/loss accounts are 66xxx (OPEX). We are able to change the Depr Expense account at the CATEGORY assignment to use 55xxx (CoR). The issue is that when the asset is disposed of, it will use the default BOOK account of 66xxx which is wrong requiring the user to book a manual reclass. Is there not a way to override the default account when disposing?