I've been using an app on my Android called unified remote (https://www.unifiedremote.com/
). It has the ability to create custom remotes for Windows, Mac and Linux computers. One of the things I love with it is that I can create my own custom Widgets with controls from multiple things. I'd like to build an OpenLP remote with it, but not sure where to find a reference to how to do so. The Android app is great, but I'd like to create a more customized one that I can add a few other windows buttons to (volume controls, etc).