I can't seem to find a RTZ option Maschine. So if indeed it isn't there then this is a feature request. How about Shift-Stop to be a Return to Zero function?
Maschine has no return to start function.
Maschine Stop button just does the same thing as Play does when a project is playing, therefor it's redundant button. People have asked for Shift+Stop for what you want for ages, at least since the release of MAS-MK3 which was the first to have a Stop button but probably even before that.
No one knows why they don't such a simple thing, I even did it for them and still nothing, unfortunately... 🤷♂️