1. In Studio Designer, select "Settings" then "Add/Remove Users"
2. You should see your full name and email address listed below. On the top, fill in the fields for "Name", "Email" and "Type" with your new email user account. Once finished, select the "Add" button to add your new email user account.
3. To de-activate your old email account, find it from the list below and select the trash icon under the "Actions" column.