unavailable dates in datepicker?

hi there,
i’m wondering whether i’m doing something wrong, or if the datepicker is simply not able to disable unavailable dates, like the calendar does? would be very useful if those dates could simply not be clicked on by the user, instead of receiving an error message afterwards. is this for premium users only?

thanks for your input.

best

The premium version has a function for it.
Regards

ok great, thanks for the info!