The menu bar displays the titles of ten menus. Many of the menus, File, Edit, Project, View, Analyze, Window and Help are common to all systems utilizing the XP interface. The Configuration, Tools and Results menu is specific to the application. Whenever you work with XP you enter commands by pointing to a menu, then dragging down to highlight the command you want. Any commands in the menu that are disabled are displayed as dimmed or bracketed. A disabled menu item indicates that the command is not available in the current context, and that some other action is required before it can be invoked.

As a shortcut, keyboard equivalents are available for the most frequently used commands. The keyboard equivalent is indicated by an underlining “_” of the letter appropriate to this command. To invoke commands from a menu use the <Alt> key in conjunction with the character, for example <Alt-F> to invoke the File menu. Once the menu is displayed press the underlined character of the menu to select the command, for example N to open a New file or R acces Recent files.

Some commonly used commands use the <Ctrl> key in conjunction with the appropriate menu command as an additional shortcut, for example <Ctrl-O> to open a new file. All of the Results menu items and some other commands use the Function keys as keyboard shortcuts, for example F5 to solve a model or F6 to Browse the output file.

Menu commands that are followed by a dialog box are indicated by an ellipsis "..." after the menu item name.