In this demo, allowGroupEdit option is set to true within the group property to enable the same event to be shared with multiple resources. With this property enabled, a single appointment object will be maintained within the appointment collection, even if it is shared by more than one resource – whereas the resource fields of such appointment object will hold the IDs of the multiple resources separated by commas. Any actions such as create, edit or delete held on any one of the event, will be reflected on all other related instances visible on the UI. The allowMultiple option when set as true within the resource property, will allow the user to select multiple resources from the resource field of editor window, while trying to create appointments.