In the edit screen of the booking page of the schedule adjustment, you can set the display of the dates when one of the members can attend the event.

If you change this setting, guests will be able to reserve a date when one of the members is available.

You can display the dates when all members can participate or when one of the members can participate.

If you set up automatic assignment, one of the available members will be assigned automatically, but if you do not set up automatic assignment, the schedule will be created among the available members, such as multiple members or one member.