Update 3 3 open layer

3-3-open-layer.md

@@ -34,7 +34,7 @@ This new menu category contains two panels.
 Note that the name of the added menu category and its ribbon are displayed differently with different added layer. 
 
 
-##### Viewing data
+##### Changing variable on current layer
 To display data of another variable on the current layer, you can select that variable in the list (on the **Variables Pane**) and:
 
 *  double-click on that variable; or