Gets a list of curves that could be applied to a playback. The list can be displayed in a menu.
Namespace: Playbacks.PlaybackOptions
System.Collections.Generic.List`1[Avolites.Menus.MenuItem] MenuCurveList(System.String)
http://[ip]:4430/titan/script/Playbacks/PlaybackOptions/CurveList
selectedCurveName: Name of the selected curve.