boolean LCN_RemoveGroup (int $InstanceID, int $Group)
Instance ID; the ID of the splitter instance, not the device instance
Group number (0..255)
If the command succeeds, it returns TRUE, otherwise FALSE.
Removes the device with ID InstanceID from the group with group number Group.
If group 0 is specified, the device will be removed from all groups
//The device with ID 12345 is removed from group 123 LCN_RemoveGroup(12345, 123);