
This button opens the Libraries menu, from which you can add and edit pages, or work with a variety of VTS tools and libraries. (See image below.)

The key feature of this menu is that a right-click on any node will always open a context-sensitive menu showing what can be done with that node.
Please refer to the Drawing Tools Library for more information on the various tools and libraries
The Pages node provides access to the tools used to create edit and delete pages. Detailed information is provided in the chapter: Adding and Editing Pages.