VTS provides a user-customizable menu to navigate through the pages you've configured for your application. This menu is accessible using the Menu button that appears to the left of the navigation bar, as identified in the following image.

An example of the VTS menu is as shown:

All of the default pages in a VTS-based application are shown in this example of a menu. Applications based on VTScada or other OEM layers will usually include more pages. You can customize the menu as required. (see: Editing the Menu)
The menu responds to 2 commands as follows:
• Left-Click: When you click any menu item, the corresponding page opens as a full-sized page in the Display Manager.
• Right-click: When you right-click any menu item, the corresponding page opens as a small, resizable, windowed page that opens on top of the previously viewed page in the Display Manager.
While many system pages may be opened as full screen and windowed pages simultaneously, only one copy of the Alarms page may be open at a time.
The VTS Programmer's Guide: Config.ini [SYSTEM] Section Settings for Pages" provides information on configuring the number of instances of a single page that can be opened.