I would like to be able to take a product returned by a customer (not purchased from customer-a return recorded on an invoice and credit issued or refunded) and to fix aka"refurb" the product and offer for sale again.

Currently I can find no way to send it to the refurb module to record work done on it before putting back into inventory. It seems my only options are to return it to inventory or send back to vendor?

In reality - we do rentals and this would be for our returned rentals before putting back into rental inventory.