Placing the command file in the Menu folder
To implement the menu Undo and Redo menu items, you must save the MyMenu.htm command file in the Adobe Dreamweaver Configuration/Menus folder or a subfolder that you create. The location of the file must agree with the location that you specified in the menuitem tag. To make it accessible to Adobe Dreamweaver, either restart Adobe Dreamweaver or reload extensions. For information on how to reload extensions, see Reloading extensions.
To run the menu commands, select the menu item when it is enabled. Adobe Dreamweaver will invoke the functions in the command file, as described in How menu commands work.