The button layout on the Sparco wheel ends up working fairly well. I use the "X" button, which is yellow, down on the lower right to scroll through the Multifunction display, (Timing, Brake Bias, Traction control, Fuel Map, diff split, radar, etc. , then I use the top right buttons, which are R2 (Orange) and the circle button (Black) to step up or down respectively through each feature. I usually drive with traction control always showing except in endurance races, then I keep fuel map up because I change it the most during the race. Those three buttons can do what all four rotary dials do. I use the upper right side button, "L2" for headlights and flashing, the lower left yellow "Square" button for "Reverse", and the lower left white button for rear view, although the 4-way direction button can also show look left, look right, look back, but it is fairly delicate and I hate to use it during the races. The bottom left orange is dedicated to "Share" and the bottom right orange is dedicated to "Pause". The middle button in the lower right is dedicated to "Start" or "PlayStation". I use L3 on the right side of the servo motor for "change view" and the R3 for Ghost. They work out pretty good and are within a "thumbs" reach. I try to keep similar functionality for Project Cars 2 and Assetto Corsa. I have the F1 wheel for 2017 F1. It has more than enough buttons with similar rotaries to the T-GT wheel.