Navigation Pane Customization Menu
The customization menu enables end-users to change the number of visible group headers, and toggle the visibility of groups. This menu can be invoked by clicking a specific arrow button within the overflow panel.

The table below lists the main members which affect the element’s functionality:
| Characteristics | Members |
|---|---|
| Command | NavigationPaneCommands.ShowFewerGroups, NavigationPaneCommands.ShowMoreGroups |
| Content | NavigationPaneView.MenuCustomizations |