Scenario: Group booking to 3 resources. On the day of the job Resource 3 calls in sick and we want to reallocate the booking to Resource 4.

Current options:

1. Delete the booking and manually allocate the resource (we currently have remove from group function that allows manual scheduling of resource requirements that are contained in a group)
2. Rebook functionality (you need to be careful to ensure resources 1 & 2 remain booked as part of the resource allocation)

Preferred option:

System would allow the substitute resource functionality to be used for the resource requirement associated with the individual booking being substituted.