I created a cheap "button box" using a external numeric pad. If your in r/trucksim then you will have seen my one i made for American Truck Simulator. Im a very casual/new
Ultimate button box | KW Studios Forum
My homemade button box : r/trucksim
Heavy Hauler - Trucking Series Controllers - Evol PC Gaming
ATS/ETS2 Button Dash - THE ORIGINAL | RaceDepartment
D.I.Y Button Box - Custom Box For Ats & Ets2 - Livestream Part 2 - YouTube