2. The system of claim 1 , wherein at least some panes in the closed state are represented as narrowed columns with a user-selectable GUI widget positioned therein, the selection of which by a user causes the associated pane to be configured to be in the open state.
2. The system of claim 1 , wherein at least some panes in the closed state are represented as narrowed columns with a user-selectable GUI widget positioned therein, the selection of which by a user causes the associated pane to be configured to be in the open state. 3. The system of claim 2 , wherein the GUI widget is a button.