@Simon2740
You can set a 2 nights minum stay when check-in is on a saterday as a default setting.
Same for other combination of min. stay and check-in days.
Use the textlink:
Customize minimum stay requirements by day of week
Or combine with fixed check-in/check-out days,see both textlinks at bottom of this one:
BTW
Rulesets are very flexible especcially for certain time periods, you only need to create them once. Then apply them to the time-periods you want.
Hope this helps,
Emiel