I'm using IFS Application 10 for aircraft maintenance control, MRO. Maintenance programs vary depending on the serial number of each aircraft, modification applied to each one. To meet the variations by the IFS, we would have to set up several maintenance programs, which would make it difficult to update when revising the maintenance manual. The question is how to put together a single maintenance program that would handle multiple requests or is it even possible to create a way to update all programs when only one of them is updated against a revision of the maintenance manual. Multiple maintenance programs for the same aircraft make updating difficult.