Currently you cannot add multiple emails for one contact in the same email field, but you can add multiple people with the same name and different emails as a workaround. However, adding multiple emails in the same email field for one contact is on our roadmap for the future. We have heard your feedback and put this feature request on our product roadmap. In the meantime, you can merge two people or add a custom data point of "alternate email" to the person. You can add this under the "User Variables" section or directly add new data points when editing a person. Let us know if you have any further questions or suggestions. Thank you for sharing your feedback, Peter.