I think many people would like to have this simple shortcut added. The best control scheme for open worlds from the games I have is the one in Fallout 76 (at least the way I configured it), so when I press X it auto-moves while I use the mouse to aim to where I wanna go, pressing WASD stops the character from auto-moving and when I press X then Left Shift, it auto-moves while sprinting, and stops auto-moving when tired or when I press WASD. I'm not even that old, I'm 33 yers old, but to stay holding a single button (W) for a long time has been troubling me for some years now. Anyway, I'm liking a lot the Odyssey expansion and this is just my two cents about one thing that I found to be missing in this great game.