On the sidebar, navigate to System Users > Role Management.
This will open a page with a list of all roles. You can view/ edit/ delete the created roles.

Setting up user roles & privileges
Click “Add Role” button at the top-left section to add a new role. In the new page enter the name of the role and check all the boxes appropriately then save. The created roles can then be assigned to users while setting up a user.

Setting Up User Roles & Privileges