Use menus to do editing operations with the mouse, instead of typing commands or pressing defined keys. To use a pull-down menu, do the following: 1. Point to the name of a menu in the menu bar. Press MB1 to display the menu. 2. Drag the mouse to the item you want, and then press MB1. To use a pop-up menu, do the following: 1. Within a buffer's borders, press and press MB3 to display the pop-up menu. 2. Drag the mouse to the item you want, and then press MB3. o LSE provides different pop-up menus for user buffers and review buffers. The user buffer pop-up menu contains menu items to cut, copy, or paste text; search for text strings; and save or close buffers. The review buffer pop-up menu contains menu items to move between source code and errors, and to end reviews. o If you choose a menu item that requires additional information, a dialog box appears where you can type the information, such as a file specification or search string. o Some menu items have a dialog box where you can choose settings or preferences, for example, Window Attributes ... in the Options menu. o The status line is also a kind of menu. Clicking MB1 on the buffer name puts your next buffer in the window for that status line (the same as the NEXT BUFFER command); clicking MB1 on one of the other fields of the status line toggles that setting (for example, to change from insert to overstrike mode).