target_window_name
The name of the window, or frame, in which the destination of the menu item will be shown A special v alue of "_blank" will open a new unnamed window.
Default value
Blank – the destination of the menu item will be shown in the current window.
Valid values
The name of a window or frame, in single quotes. A list of known windows and frames can be displayed by clicking on the corresponding dropdown button in the property sheet.