Titan Property

Editor.Shapes.EditShapesEmpty

API	http://api.avolites.com/11.0/Editor.Shapes.EditShapesEmpty.html
description	Value indicating whether or not the EditShapes list is empty.
Namespaces	Editor.Shapes
type	Boolean

<step condition="!Editor.Shapes.EditShapesEmpty">
  ActionScript.SetProperty.Boolean("Editor.Shapes.EditingPlaybackShapes", true)
</step>

only if the list of shapes in the editor is NOT empty the step is executed (here, a property is set).