Just for anyone else trying to get this working, I downloaded, built and installed the version of the virtual mouse at [Login to see the link] and it seems to work so far. Still testing it. This repo is a fork that was kindly done by someone and I am not sure if it has been merged back into the main repo, or it just worked for me because of some random cosmic event. Might be worth another look though. Scrolling does work but I can select chats in WhatsApp 🙂