In addition to having the possibility of copying work for a new order, it would be interesting to have the additional functionality "Copy this job for a new estimate".
Because in some cases, it is necessary that the customer validates again this estimate.
I would use this function all the time. With the crazy paper pricing we see now days customers want to know how much they are going to pay and what if I only buy half and and and. Without the ability to convert an old order to a quote we start from scratch every time.