Cost Adjustments in Batches?

Hi All-

Looking for suggestions for adding mass cost adjustments. Each month, we have about 40-50 cost adjustments for both CIP and capitalized assets. We'd like to be able to upload them via ADI, but there doesn't seem to be an option for that. There's one Asset Integrator -- additions -- and I was hoping that by populating the Asset Number column on that spreadsheet, FA would determine that an asset already exists and add the amount as a cost adjustment. However, ADI rejects the upload with the reason that automatic numbering is turned on and therefore you can't create new assets