 	import weave.core.LinkableBoolean;
 	import weave.data.DataSources.WeaveDataSource;
 	import weave.data.KeySets.KeySet;
+	import weave.editors.SessionHistorySlider;
 	import weave.editors.SingleImagePlotterEditor;
 	import weave.editors.WeavePropertiesEditor;
 	import weave.editors.managers.DataSourceManager;

			if (!historySlider)
			{
				historySlider = EditorManager.getNewEditor(Weave.history) as UIComponent;
				if (historySlider)
					this.addChildAt(historySlider, this.getChildIndex(visDesktop));
				else

	import weave.utils.DebugTimer;
	import weave.utils.EditorManager;
	import weave.utils.VectorUtils;
	import weave.visualization.tools.WeaveAnalyst;

	internal class VisApplication extends VBox implements ILinkableObject
	{
