Fills a handle reference list with all the fixtures in a group.
Namespace: Group
Void FillFixtureHandleListFromGroup(Avolites.Titan.Controllers.Handles.Handle, Avolites.Titan.Controllers.Handles.HandleReferenceList)
http://[ip]:4430/titan/script/Group/FillFixtureHandleListFromGroup
group: The group to get the fixtures from.
fixtureHandles: The handle list to fill with the group fixtures.