Displays the Preferences dialog box which allows to specify a large number of user preferences.
Displays the Install Add-ons dialog box, which lets you download, install, upgrade and uninstall add-ons.
This menu item is absent when XMLmind XML Editor has been started using Java™ Web Start.
If you hold the Shift key and click on → , you'll automatically upgrade user-installed add-ons (of course, if any and if needed to). More information in Section 14.1, “Automatically upgrading installed add-ons”.