An event consists of a set of predefined time slots on the calendar. The client simply selects one of these slots. If there is only one slot available, the system will automatically select it.
Rental refers to a period on the calendar that is divided into multiple steps, marked by points along the timeline. The client selects the start and end points separately. You can configure any schedule with any set of steps using rules in the resource configuration.
Try booking different scenarios for both event and rental types: