Yes, we can. There is a hook to add additional option for roles.
Code below adds “Add custom CSS” additional option. Custom CSS will be added to the backend for the selected role once you turn this option ON for it.
I meet another problem, installing the new plugin that comes with an admin menu, but it’s not appeared in the “admin menu” list. (It appeared in the backend admin as I’m a super admin but not other roles).
I think is it the problem when User Role Editor haven’t update the admin menu item yet? And how to fix it?
URE shows full admin menu for the ‘administrator’ role only. URE shows admin menu items to which selected role has access only – for all other roles.
Do you see mentioned menu item if you open “Admin menu” for the “administrator” role? Look what capability protects needed menu item there. It will appear at the “Admin menu” for other role after you will grant that capability to a role.