Hiding menus in JDE OneWorld Explorer

please let me know how to hide a menu(from OneWorld not in Solution Explorer) in JDE for a particular user.Can it be done from Security Workbench?if yes,how? or, is there any other way to do this?

what i really want to mean is that as an administrator how can i hide a entire menu(say GH902,not a particular item under the menu )for a particular user so that the user will not have access to that menu at all.

Activate "row" level security on MNI and MTOE DD items. Use MNI if you want to prevent user / group from previewing a full menu. Use MTOE to hide a menu item from user / group. Use security workbench to apply security. (Do not forget to refresh DD on your client where the security has to be activated)