Click on Practice setup on the right hand side.
To add staff or make changes to staff click on Staff details.
In the staff details page you will see a box to add the email for a member of staff.
Once you have added the email address you should be able to find the email in the staff details section below.
To add the rest of the staff details, click on the email address and click the edit button next to the email address.
You should then be able to add the remaining details for the staff member and click save for the changes to take effect.