just for the rest:
If used "Who can access this plugin" "Only the current user ... user ID: x" and you change the id (plugin better wp security or else) you lost access to admin menu editor.
If you have no solution by plugin, use phpmyadmin and open sql: "SELECT * FROM
option_name = "ws_menu_editor""
At the end of the settings find out
Example i:1 - 1 this is the only user for using menu editor.