//clears the entire group for all units
//then resets to main menu
private void ClearGroup(object sender, EventArgs e)
{
DALIController.ClearGroup(_currentGroup);
SetUpFirstButtons();
}
public void ClearGroupTest()
{
Controller.AddUnitToGroup(Controller.AllLights[0], 0);
Controller.ClearGroup(0);
Assert.IsEmpty(Controller._groups[0].GroupOfLights);
}