When the event happens on-site, it is often needed that some tables are reserved in advance for some of the participants.
In order to assign a fixed table to a participant click on the participant's profile in the Participants list and click on Settings. Choose the table from the list and click on Save.
The system will automatically place all meetings at the participant's fixed table.
Make sure you assign fixed tables before the booking time frame starts. There is the possibility that the table will not be available if you assign it after the booking phase has started.