Mesolore's Navigation Tools reside at the top right of the screen. Starting at left, the Quit button (X) exits the program. Help (?) leads to information on using Mesolore. Retrace (the spiral arrow symbol) steps back through the sequence of screens that led the user to the current screen. Clicking Tools (hand clutching a tool) shows a pop-up menu that allows you to access Tools such as a Glossary, Search, a topical Index, write in a Notepad, create and remove Bookmarks, and Print selected items. The Home button shows menus leading to Mesolore's main Home screen and to the program's Credits.
