can we get Functionality to create positive credit memo when receipt application is already applied

Summary

The functionality to create positive credit memo when a receipt applications exists is not available through webservice .

Content

business Scenario for exchnage:
1. Created Regular Sales Order for 5 qty
2. AR invoice generated
3. Receipt created
4. Applied Invoice on the receipt (So balance become zero)
5. Created RMA order only for 1 qty
4. AR credit Memo generated for 1 qty (That means now balance become $-2 on the actual invoice)
3. Run the credit memo payload with a positive amount- which cannot be dne (Error out)