Modify or replace required mods in existing missions

[TheBiggerBass]

Is there a tool or an easy way to modify or replace required mods in existing missions?

I have many missions for the MiG-29S that I would like to reuse for the new MiG-29A Fulcrum. I would also like to reuse F-14 or F/A-18 missions and campaigns for the F-16 or MiG-29A. Sometimes older missions require modules that are no longer available, and I would like to disable them. Manual editing with the Mission Editor is tedious and does not always work.