To activate this feature in your booking form, you need to:
Open the linked records field settings on your form.
Go to the Records Finder Options section.
Select Calendar from the finder mode view options.
Choose the Calendar mode start date and Calendar mode end date fields. Both settings are required. You can select a date field that includes a time, or a valid formula field that returns a date. A regular date-only field is not available in these selectors.
The calendar will display an indicator on the days that have associated records, allowing you to easily identify and select those specific days. Please refer to the following example for a visual representation.

