Since the end of last year, it is possible in 4me to make a recurrent reservation for a configuration item. It is now also possible to discern with an automation rule whether a reservation is one-time only, or recurring. For this, the Boolean field Recurrent has been exposed to the automation rules.
This can be helpful for organizations that want to take automated action on reservation requests that are not recurrent. For example, for adding the reservation date to the request subject, which would not make sense on recurrent reservations.