ModifyInitiatorVolumeAccessGroupID Property

The ID of the volume access group to which the newly created initiator should be added. If the initiator was previously in a different volume access group, it is removed from the old volume access group. If this key is present but null, the initiator is removed from its current volume access group but not placed in any new volume access group.

public Nullable<long> VolumeAccessGroupID { get; set; }