1.In the Group Bookings list view tab under the Event's Lodging tab, you can begin a new Group Booking by clicking the New button, or right-clicking in the selection grid and selecting New from the speed menu.
2.This will start the Accommodation Group Booking Creation Wizard with the Room Selection page.
Note that because you started this booking from within an Event, you have skipped the Group Booking Type page of the wizard, which asks whether you want the group booking associated with an event.
3.From here, continue with the instructions under Group Booking Wizard, starting with the Room Selection page.