This tutorial will demonstrate how to use the Custom Permissions module.
By default in Drupal, user permissions in the Drupal backend are not very granular.
For example, if you want to give a role the ability to edit only the “Basic site settings” in the Drupal admin UI. In Drupal, this can be achieved by giving the access permissions “administer site configuration”. However, with this permission enabled, the role will also have the ability to edit other site settings which you may not want a user to have access to.
Enter the Custom Permissions module.
With this module, you could solve the above problem by creating an extra custom permission to edit only the “Basic site settings” page without assigning the “administer site configuration”.
This light-weight module will allow you to specify the exact admin route (or path) that you want to give permissions to without giving the role access to everything in the administration section.
In this tutorial, you’ll learn how to create a custom permission which will only have access to the “Basic site settings” page. We’ll be using the 8.x-2.x version of the module.