After 2 hours of fiddling around options, let me rephrase my request: what I would like to do is hide menus like “Welcome” “Configuration” or “Diagnostic” so they don’t show in the editor user menu. When I try to do so with the Advanced Access Manager plugin, it gives me the 404 error.
When I try to hide these menus with a function like remove_menu_page(‘newsletter_main_index’);
It hides all the Newsletter pages for the user instead of hiding only the Welcome page.
How can I hide some menu items so people don’t mess too much around with Newsletter? I want them to only see “Newsletters” “Suscribers” and “Statistics” in their menus.