public override void OnClick()
{
frmCreateGraphicTrackOptions optionsForm = new frmCreateGraphicTrackOptions();
IGeometry selectedPath = GetSelectedLineFeature();
IElement lineElement = (IElement)GetSelectedLineElement();
IElement selectedElement = GetSelectedPointElement();
optionsForm.lineFeature = selectedPath;
optionsForm.lineGraphic = (ILineElement)lineElement;
optionsForm.pointGraphic = selectedElement;
optionsForm.AnimationExtension = animExt;
optionsForm.RefreshPathSourceOptions();
optionsForm.ShowDialog();
}