[qualiteam]

This is the class that controls the Modules page:
https://github.com/xcart/xcart5/blob/master/src/classes/XLite/Controller/Admin/Module.php

You should decorate it from your custom module, add the checkACL() method and change it so that the page is visible to users that you need. You can find this method in the parent class:
https://github.com/xcart/xcart5/blob/master/src/classes/XLite/Controller/Admin/AAdmin.php

Also, you may need to decorate the following classes from your custom module:
- https://github.com/xcart/xcart5/blob/3baf515b75d0155444353fca15545c9a655411bc/src/classes/XLite/View/Menu/Admin/LeftMenu.php
- https://github.com/xcart/xcart5/blob/c8b4fa7834a61239735f84527b4095723304e6fc/src/classes/XLite/View/Menu/...place/Menu.php