Experience Portal provides role-based access to the EPM pages. With the role based access, you can perform only those actions for which you have access permissions. The options for performing other actions are either not displayed or disabled on the EPM pages for that particular feature. For example, if you have the View Only permission on the Users EPM page, you cannot add, change, or delete a user. To gain access to these pages, you must obtain a user account with a different user role.
These roles are default EP roles, but you can create a custom role for any particular purpose.