/// ------------------------------------------------------------------------------------
public void AddIgnoredSegment(TimeSpan newBoundary)
{
Tiers.AddIgnoredSegment((float)newBoundary.TotalSeconds);
_undoStack.Push(new SegmentChange(TimeTier.Segments.First(s => s.TimeRange.End == newBoundary).TimeRange.Copy(),
c => { Tiers.GetTranscriptionTier().Segments.Last().Text = string.Empty; RevertNewSegment(c); }));
OnSegmentBoundaryChanged();
}