I searched the plug-ins and it has nothing that looks quite like what I'd need for this particular task. I also recently started using/learning Reaper, and it looks like theirs a lot of user support/add-ons. I have Ableton Live as a DAW, so maybe theirs a tool in that I'm unaware of? Especially since I'm looking at 2 old tracks, and possibly a couple more depending what else I dig out to work on/re-work. If I gotta go and drag and drop MIDI around part by part in the piano-roll I'm gonna go bat-shit crazy. I've googled the crap out of this, and their doesn't seem to be an easy similar solution for this.
BUT it doesn't do it the other way around. That works great for converting EZD midi to AD2. Theirs that Mark Heath MIDI File Mapper program. Thing is, is their an easy way to take the old MIDI I did in AD2, but convert it to to EZD's format? I got a couple of old tracks with the drums done in Addictive Drums 2, but currently been experimenting with EZ Drummer again after a long time.
This is one thats been bedeviling me for a bit.