True. I do have a pm3 I can use, I was really just curious about the app more then anything.
You can totally do that. This app also seems to include some other features as well though that might come in handy at some point. (Assuming they work ofc. Haven’t done much testing yet.)
It does include another keys file that isn’t included with the standard MCT. It’s a 10,204 line file called full.keys. Unfortunately though, it can’t be imported into MCT because “some keys contain invalid data (not hex)”. At some point I’ll probably write a script to remove the invalid keys.
Thanks! Can’t believe I didn’t see that 
Gonna be doing some research into the app. Since it’s open source I’ll see if I can fix some issues with it if I have time.