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home.md

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 3 Basics of User Interface
 * [UI components & terminology](3-1-ui-components)
-* [Opening data files (Data Pane)](3-2-open-data)
+* [Opening data files (Variables Pane)](3-2-open-data)
 * [Viewing data with layers (Layers Pane)](3-3-open-layer)
 * [Controlling perspective (Rendering Pane)](3-4-control-perspective)
 * [Controlling regional boundaries (Area Pane)](3-5-control-boundary)