No Access: The user has no access to menu configuration information; that is, the user cannot read preconfigured menu configuration information or change menu configuration information. This means that any menu configuration information contained in the .WS file (specifically, in the [Menu] stanza) or the PCSWIN.INI file (modified by selecting the View → Show → Menu menu) is ignored, and the user cannot execute the menu bar customization utility (pcscmenu.exe).
The difference between this item and the Read item is that this item ignores updates to the menu configuration information that the user may have made while manually editing the .WS file or PCSWIN.INI file. This means that the user can use only the product default menu configuration, and that you cannot set up modified menu configurations to be used by users who have No Access. This is the most restrictive level of control.
Read: The user can only read preconfigured menu information. This means that menu configuration information contained in the .WS file (specifically, in the [Menu] stanza) and the PCSWIN.INI file (modified by selecting theView → Show → Menu menu) is not ignored, but the user cannot update the menu by selecting View → Show → Menu or the menu bar customization utility (pcscmenu.exe). The difference between this item and the No Access item is that this item does not prevent the user from updating the menu configuration information by hand editing the .WS file or the PCSWIN.INI file. However, unlike the No Access item, this item allows an administrator to set up modified menu configurations to be used by users who have Read access. This is less restrictive than No Access.
Write: The user can read preconfigured menu information, and can make permanent changes to the menu configuration information. This is the least restrictive item, and is equivalent to the level of control in which users operate without policy support.

Menu