Comment 6 for bug 1429331

Sure it would be easy for you or me to do this in JavaScript, but any use of JavaScript would be an obstacle to less tech savvy users with no programming experience who just want to map their controller. This is a useful and common enough function that I think it is worth Mixxx handling natively. Particularly with the new and improved mapping GUI, it would be advantageous if utilizing this functionality of controllers did not require any JavaScript.

Controllers aside, this would be a nice functionality to have integrated into Mixxx's GUI and default keyboard mapping for everyone.