public void AddStep(Photon chan_pair)
{
List<Photon> chan_pairs = new List<Photon>();
chan_pairs.Add(chan_pair);
AddStep(chan_pairs);
}
public void AddStep(Photon chan_pair, double stepTime, double upFadeTime, double dwellTime, double downFadeTime, int low, int high)
{
AddStep(new List<Photon>() { chan_pair }, stepTime, upFadeTime, dwellTime, downFadeTime, 0, 255);
}
