1.) Click on the Settings tab.
2.) Click on Roles and Permissions. On the right side of the page there you can see the list of permissions.
3.) Click on the small blocks in line with any permission, a small tick will be displayed in the block. By ticking the blocks you can decide which permissions you want the user role to have.
4.) If you want to remove a tick simply click on it again. Once all the desired permissions have been ticked click on any of the blue ‘Save’ buttons.