New to MythTV version 0.19 is the Edit Keys feature. As with any new feature in MythTV, there is little documentation on how to use it. I decided to take a look at it and see just how it works, and I was quite pleased with how easy and intuitive it was to use. What is Edit Keys? The Edit Keys screen allows you to remap any of the keyboard/remote control keys in all of the MythTV contexts.