Revaluation of asset

Hi

We have a scenario in which we want to post a revaluation value to asset to be created through Legacy Upload. We have two depreciation areas, 01 for Book Depreciation and 15 for Income Tax Depreciation. We do not want to create a new depreciation area for Revaluation. We have added the GL Accounts for Revaluation in Depreciation Area 01 under balance sheet and depreciation. However, in AS91, system is showing the value for revaluation in grey mode. How the same can be handled.

Regards

Sanil Bhandari