Browser mod Button to open android app

Hello, I want to be able to open an android app that is on my wall tablet from the browsermod dash. I have been able to do this with fully kiosk, but it keeps crashing and reloading, hence using browser mod. I can put up with the devices top bar on show, and control the screen on and off with an external motion sensor (inbuilt one does not work), but I need the “app launch” from a button. I have tried lots of examples including the Android Webview . Any help would be greatly appreciated, Thanks.