Stock return to deal with by products

A means to send by-products to stock. If we modify a build item and a modification done, i.e. the removed component could be re-used, through the build process and the bill of materials, effectively have two complete build parts. We buy a bike, we want to add different wheels Bike A = Frame A and standard wheels A New Bike B = Frame A [without standard wheels] + optional wheels B So the standard wheels will go to stock and the new bike also to be allocated to a sales order