The File→New menu item implements the standard operation for creating a window on a new file. The file is not associated with any particular filename until it is saved to the filesystem. In the component edition of Zed, the only visible result of this operation is to clear the input window.

The File→New menu item can also be invoked using the keyboard accelerator Ctrl+N, and appears on the Standard toolbar.

The File→Open menu item implements the standard operation for opening a window on an existing file. The window remains associated with the file that is loaded until such a time as it is saved to the filesystem with another file name.

The File→Open menu item can also be invoked using the keyboard accelerator Ctrl+O, and appears on the Standard toolbar.

The File→Close menu item implements the standard operation for closing a window. This operation does not appear on the context menu, nor is it visible until a document is actually open.

The File→Close All menu item implements the standard operation for closing all open windows. This operation does not appear on the context menu, nor is it visible until a document is actually open.

The File→Save menu item implements the standard operation for saving an open file. This operation is not visible until a document is actually open.

The File→Save menu item can also be invoked using the keyboard accelerator Ctrl+S, and appears on the Standard toolbar.

The File→Save As menu item implements the standard operation for saving an open file to a file name supplied by selecting a name from a dialog. This operation is not visible until a document is actually open.

The File→Print menu item implements the standard operation for printing a file. This operation does not appear on the context menu, nor is it visible until a document is actually open.

The File→Print menu item can also be invoked using the keyboard accelerator Ctrl+P, and appears on the Standard toolbar.

The print operations are not yet supported in this version of Zed.

The File→Print Preview menu item implements the standard operation for previewing the printing of a file. This operation does not appear on the context menu, nor is it visible until a document is actually open.

The print operations are not yet supported in this version of Zed.

The File→Print Setup menu item implements the standard operation for setting printing options. This operation does not appear on the context menu.

The print operations are not yet supported in this version of Zed.

The File→Recent File menu items provide a list of the most recently used MathML files that you have opened in the editor. You may choose an item from this list to open a file without having to navigate back to it using the file open dialog box. This list does not appear on the context menu.

The File→Exit menu item implements the standard operation for closing the application. This operation does not appear on the context menu.

The Edit→Source menu item raises a dialog that allows the user to modify the MathML source for the current expression being edited. Modifications to the source can then be inserted back into the document using the Get and Set buttons on the dialog.

The Edit→Source menu item can also be invoked using the keyboard accelerator Alt+Enter, and appears on the Source toolbar.

Note that the Done button on the dialog does not imply a Set operation.

The Edit→Undo menu item invokes the undo operation, that reverts to the state of the editor before the most recent operation was performed. More than one operation can be undone in succession by repeatedly selecting this menu item.

The Edit→Undo menu item is only available once editing operations have been performed that are subject to being undone.

The Edit→Undo menu item can also be invoked using the keyboard accelerator Ctrl+Z, and appears on the Standard toolbar.

The Edit→Redo menu item invokes the redo operation, that returns to the state of the editor after including the effect of an undone operation. More than one operation can be redone in succession by repeatedly selecting this menu item.

The Edit→Redo menu item is only available once editing operations have been performed that are subject to being redone.

The Edit→Redo menu item can also be invoked using the keyboard accelerator Ctrl+Shift+Z, and appears on the Standard toolbar.

The Edit→Cut menu item implements the standard operation for deleting part of a document and copying it to the clipboard. Only a well-formed expression can be cut from the document. The current expression is deleted and replaced with a placeholder element.

The cut and paste operations support clipboard data in both MathML (using the plain text clipboard format) and HTML clipboard formats.

The Edit→Cut menu item can also be invoked using the keyboard accelerator Ctrl+X, and appears on the Standard toolbar.

The Edit→Copy menu item implements the standard operation for copying part of a document and copying it to the clipboard. Only a well-formed expression can be copied from the document. The current expression is the expression copied to the clipboard.

The cut and paste operations support clipboard data in both MathML (using the plain text clipboard format) and HTML clipboard formats.

The Edit→Copy menu item can also be invoked using the keyboard accelerator Ctrl+C, and appears on the Standard toolbar.

The Edit→Paste menu item implements the standard operation for pasting part of a document from data on the clipboard. Only a well-formed expression can be pasted into a document, and the data replaces the current expression.

The cut and paste operations support clipboard data in both MathML (using the plain text clipboard format) and HTML clipboard formats.

The Edit→Paste menu item can also be invoked using the keyboard accelerator Ctrl+V, and appears on the Standard toolbar.

The Edit→Delete menu item implements the standard operation for deleting part of a document. Only a well-formed expression can be deleted from the document. The current expression is deleted and replaced with a placeholder element.

The cut and paste operations support clipboard data in both MathML (using the plain text clipboard format) and HTML clipboard formats.

The Edit→Delete menu item can also be invoked using the keyboard accelerator Delete, and appears on the Standard toolbar.

The Format→Custom menu item allows you to create a custom layout transformation for a content operator using the Custom Layout Wizard. See the Custom Layout Wizard subsection of the Configuration section for details on how to use the Custom Layout Wizard.

The Format→Identity menu item allows you to change between two layout rules that can be used to display nested unary additive identity operators, such as when a unary <plus> element appears immediately within another <plus> element. When this option is checked, both the infix additive operator and the prefix unary identity operator will be explicitly displayed, as in "x + + y". When this option is unchecked, the presence of the prefix unary identity operator will be elided by Zed as redundant.

The Format→Inverse menu item allows you to change between two layout rules that can be used to display nested unary additive inverse operators, such as when a unary <minus> element appears immediately within a <plus> element. When this option is checked, both the infix additive operator and the prefix unary inverse operator will be explicitly displayed, as in "x + - y". When this option is unchecked, the presence of the infix additive operator will be elided by Zed as redundant.

The Format→Assoc menu item allows you to change between two layout rules that can be used to display nested operators of equal precedence, including associative operators. When this option is checked, explicit parentheses are used to surround nested operators of equal precedence, such as when a <minus> element appears immediately within a <plus> element. When this option is unchecked, explicit parentheses are elided when Zed can determine, by means of the operator precedence rules, that the explicit parentheses are not needed to specify the semantics of the expression.

The Format→Times menu item allows you to change between two layout rules that can be used to display the infix multiplication content operator. When this option is checked, the infix multiplication operator will display using a centered dot entity reference instead of the invisible times entity reference. When this option is unchecked, the infix multiplication operator will display using an infix invisible times entity reference.

Other styles of layout rules for the infix multiplication operator can be defined using the general configuration customization framework. See the Configuration section for more details.

The Format→Apply menu item allows you to change between two layout rules that can be used to display the general apply function content operator. When this option is checked, the general apply function operator will display using an infix "@" symbol instead of the invisible apply function entity reference. When this option is unchecked, the general apply function operator will display using an infix invisible apply function entity reference.

Other styles of layout rules for the general apply function operator can be defined using the general configuration customization framework. See the Configuration section for more details.

The Format→Font Size menu item allows you to change the font size by specifying the new value in a dialog window, rather than on the toolbar. This menu item is provided to allow you to change the font size using the context menu, when the the toolbar is not available.

The Palette→Open All menu item activates all of the available palettes.

The Palette→Close All menu item deactivates all of the available palettes.

The Toolbar→Standard menu item activates or deactivates the Standard toolbar, which contains buttons corresponding to menu items from the File menu, Edit menu, and Help menu.

The Toolbar→Format menu item activates or deactivates the Format toolbar, which contains buttons corresponding to menu items from the Format menu.

The Toolbar→Source menu item activates or deactivates the Source toolbar, which contains buttons corresponding to menu items from the Edit menu and Source menu.

The Toolbar→Option menu item activates or deactivates the Option toolbar, which contains buttons corresponding to menu items from the Option menu.

The Source→MathML-C menu item raises a read-only dialog window for viewing the MathML content expression representing the current expression.

The Source→MathML-C menu item can also be invoked using the button on the Source toolbar.

The Source→MathML-P menu item raises a read-only dialog window for viewing the MathML presentation expression representing the current expression.

The Source→MathML-P menu item can also be invoked using the button on the Source toolbar.

The Source→Zed-C menu item raises a read-only dialog window for viewing the Zed internal content expression representing the current expression.

The Source→Zed-C menu item can also be invoked using the button on the Source toolbar.

The Source→Zed-P menu item raises a read-only dialog window for viewing the Zed internal presentation expression representing the current expression.

The Source→Zed-P menu item can also be invoked using the button on the Source toolbar.

The Option→Load menu item allows the user to load a custom configuration file, specified by name chosen via a file dialog. The extension of the configuration file is assumed to be .zc and the file is assumed to be in the Config directory where Zed is installed.

The Option→Load menu item can also be invoked using the button on the Option toolbar.

The Option→Save menu item allows the user to save a custom configuration file, specified by name chosen via a file dialog, containing the current configuration state of the editor. The extension of the configuration file is assumed to be .zc and the file will be created by default in the Config directory where Zed is installed.

The Option→Save menu item can also be invoked using the button on the Option toolbar.

The Option→Menus menu item raises a configuration dialog that allows the user to edit the menus defined by Zed that appear on the Math menu. By changing this information, additional menus can be defined, or existing menus can be arranged to invoke named templates as desired.

The format of the data in the configuration dialog follows the same syntax as Zed internal expressions.

The Option→Menus menu item can also be invoked using the button on the Option toolbar.

The Option→Palettes menu item raises a configuration dialog that allows the user to edit the palettes defined by Zed that appear on the Palette menu. By changing this information, additional palettes can be defined, or existing palettes can be arranged to invoke named templates as desired.

The format of the data in the configuration dialog follows the same syntax as Zed internal expressions.

The Option→Palettes menu item can also be invoked using the button on the Option toolbar.

The Option→Layout Rules menu item raises a configuration dialog that allows the user to edit the operator layout transformations used to map MathML content expressions to MathML presentation expressions for display. By changing this information, a user can customize the appearance of expressions on a per-operator basis. See the <semantics> element for means of customizing the appearance on a per-expression basis.

The format of the data in the configuration dialog follows the same syntax as Zed internal expressions.

The Option→Layout Rules menu item can also be invoked using the button on the Option toolbar.

The Option→Template Rules menu item raises a configuration dialog that allows the user to edit the operator templates used to create expressions in Zed. By changing this information, additional operators can be accommodated by the editor in ways similar to the conventions used for other operators. User-defined function symbols can also be accommodated in this fashion.

The format of the data in the configuration dialog follows the same syntax as Zed internal expressions.

The Option→Template Rules menu item can also be invoked using the button on the Option toolbar.

The Option→Traversal Orders menu item raises a configuration dialog that allows the user to edit the operator traversal order information used to control the sequence in which child elements are visited by the cursor movement keys. Each operator is allowed to specify a permutation of its visible child elements to customize the traversal order.

The format of the data in the configuration dialog follows the same syntax as Zed internal expressions.

The Option→Traversal Orders menu item can also be invoked using the button on the Option toolbar.

The Option→Other Properties menu item raises a configuration dialog that allows the user to edit the properties of the mathematical operators supported by Zed. These properties include values for operator precedence, and other miscellaneous information.

The format of the data in the configuration dialog follows the same syntax as Zed internal expressions.

The Option→Other Properties menu item can also be invoked using the button on the Option toolbar.

The Window→Close menu item implements the standard operation for closing a window.

The Window→Close All menu item implements the standard operation for closing all open windows.

The Window→Next menu item implements the standard operation for moving to the next window in the list of open windows in the application.

The Window→Next menu item can also be invoked using the keyboard accelerator Ctrl+Tab.

The Window→Previous menu item implements the standard operation for moving to the previous window in the list of open windows in the application.

The Window→Previous menu item can also be invoked using the keyboard accelerator Ctrl+Shift+Tab.

The Window→Cascade menu item implements the standard operation for arranging the open windows so that they are all visible by overlapping them within the application frame window.

The Window→Tile menu item implements the standard operation for arranging the open windows so that they are all visible without overlapping within the application frame window.

The Window→Arrange Icons menu item implements the standard operation for arranging the icons of the minimized windows so that they are all at the bottom left corner of the application frame window.

The Window→Active Windows menu items provide a list of the active windows you have open in the editor. You may choose an item from this list to bring a window to the front and give it the input focus.

The Help→Users Guide menu item invokes the web browser in a separate window to view this document.

The Help→Users Guide menu item can also be invoked using the button on the Standard toolbar.

The Help→About menu item displays a graphic describing Zed, applicable copyright information and information about the current version you are using.

The Help→About menu item can also be invoked using the button on the Standard toolbar.