Check you have the correct SteamVR Bindings assigned
thx. yes its seems like it is a binding issue. its stuck on "custom" and i think setting it to default would fix this. Overall the settings Ui gets very laggy and glitchy when trying to do this. I googled this and turns out you need to dig deep and mess with steamVR files abit to get it work.
(sorry im not native english speaker and its hard to explane things :P)