I’m not aware of a master track setting unfortunately, I know what you’re asking. It would be something you might want to suggest if no one has a good work around by leaving a comment in the features request thread:
since I’m not positive there isn’t a way, hold off for a minute so someone else can see this but to my knowledge you have to set it all at least once and then it could be transferred as a whole when you copy the blank pattern containing your settings.
If I understand, you’re looking for a setting that sets the key and scale on a project level which is something I haven’t seen implemented in Elektron boxes.