But, alongside that, it seems Google TV is also preparing support for a few other features, including a customizable remote button. Hiding under the surface in Android TV OS 14’s Google TV build ...

I started using Android TV devices with the 2017 NVIDIA Shield ... etc.). But it really shines when I add custom buttons from any remote I currently have. The app and most of its features are ...

Android TV 14 beta ... which can then be mapped to a blank button on your remote. Users could also choose to use the custom button to view and switch inputs for the TV or other connected devices ...

It's called QuickClick, and it allows you to program your Android device's volume buttons for various other tasks, much in the way that the Dimple app will do with those add-on buttons.