Editing SOV amounts after first pay application submitted

I need for my subcontractors to be able to edit their SOV after the first pay application is submitted or at the very least, allow me as the GC be able to edit it. For example, an owner that receives all my subcontractor pay apps has requested it to be shown differently after billing is completed for the first month. For me to keep using this system, we need to be able to make those adjustments to accommodate the owner requests.