The fastest way to create reservation is via the “Locker” tab in the top panel.

Select a locker bank to bring up the locker interface. Green lockers are available.

This method allows for creation of both fixed or adhoc locker reservations via the radio button on the top right of the popover form. Ticking Overwrite Reservation Duration box will let you created custom adhoc reservation by choosing specific start and end time instead of default adhoc settings.

Red lockers are reserved. Selecting one of them will bring tools panel to view locker status