Gets or sets the Titan ID of a pending scribble/graphics object.
Namespace: Editor.PixelMapper
ActionScript.SetProperty(Editor.PixelMapper.PendingTitanId,[value])
http://[ip]:4430/titan/get/Editor/PixelMapper/PendingTitanId
POST /titan/set/Editor/PixelMapper/PendingTitanId