You can edit any email address provided you have the security role that lets you edit the information.
Information about to use each field can be found by clicking HERE.
Changing The Primary Email
You cannot uncheck the primary email box on an email address. To change a primary email, just go to (or add) the address you want to be primary and check the box on that record. Advisors Assistant Mobile will automatically uncheck the current primary email and the new primary email will be used.