When creation you rides you can create rides with Itinerary Variants. In such a scenario you will only have 1 item to select when your booking, after selection you can select your specific timeslot based on the Itinerary variant.
This will give you the flexibility to have for instance a 1 hour duration or a 1,5 hour duration with specific timeslot/schedule or a different schedule on weekends.
When you have your schedule in place you can create your trips. This will give you an overview of the planned trips on specific days set in your timeschedule
When your trips are populated and this is according your timeschedule the final step is the creation of the slots/rides
