There's this too. There's a free version somewhere on their site. It's limited, but I used it to associate buttons in a midi app on a tablet I use with keyboard commands, so I can cut, paste, move around, etc. with a tablet (I don't have much room for a keyboard on my desk. Too much shit, and my pullout underneath is an full sized S88.).

https://www.bome.com/products/miditranslator