Thank you for the fast answer. At first, yes I know the eye tracking of Windows 10. Unfortunately for me it is more or less useless, because I need eye tracking mainly for gaming. It supports me with my handicap.
The mouse control would be no problem, there are enough tools for this. But I would need a software with hotkey interactors. Like Project Iris, look: https://www.youtube.com/watch?v=0emlROwU28s&t
It’s really harder than imagining finding a second software that can do it, hm!