Maybe this could be an idea to include in core. Unfortunately I am filled up with work, so please go ahead.

Joe

Now, FA can not modify WO Requirement and I have a case where I need to change some material with another material as a substitute. It would be annoying if we must create a new item which have different BOM even only one material. So, I plan to add a feature to edit the WO requirement. Does some problem will occur (in accounting process) if I add this feature? I already have some idea about accounting logic in FA but for this WO, I still don't get it, especially in cost or issue while we have 0 quantity. So, to add another material, I will hide this menu and create one myself. What are your opinion to this?