This is easy. Let's take a simple example where your mission will use audio files from two AMORE Contributors, whose OFPEC Tags are Avon and Cosmo. All that needs to be declared in the AddOns and AddOnsAuto sections of your MISSION.SQM file are the AMORE Addon File names "Amore_Avon" and "Amore_Cosmo".
You must manually key in the AMORE Addon File name declarations yourself. If anyone knows how to get OFP's Mission Editor to automatically include these declarations when saving a MISSION.SQM file, please let me know.