Hi there !
In my music production process I’m using my Roland TD4 drum kit with MTPowerDrumKit.
But some of the MIDI CC messages are not visible to the plugin so I made a LUA plugin to sort this out.
Instead of keeping this for my personal use, I thought it might be of some interest for the community so I published it there : https://github.com/remyzerems/RolandTD4-to-MTPowerDrumKit
Feel free !