@Susanne568
This is a common feature on the platform:
1. Without "professional tools" you can only limit the check-in day
2. With it you can also limit check-out day.
Limit check-in days for whole calender:
1a. Goto "Pricing and availability", section "calender availibility, item "retricted check-in days"
1b. Temporary limit for specif time period:
Goto "Pricing and availability",section "trip lenght", choose specific dates (the weekend) and limit check-in day.
2. Create a ruleset and limit check-in /check-out days . Apply rule set to specific weekend(s).
This is most flexible and reliable method.
Dates will be available, but on booking calender guests will see message 'host not availalble" and no possibility to start(!) a reservation on that date. But date can be part of a reservation with other check-in day.