After creating a new list, when adding a new recipient, I was able to use its "Addition email" by starting to write it - autocomplete takes care of the rest.

Unfortunately you can't choose it from the contact information, you have to know at least part of the email address to use it there.

Thank you for your quick response. I was not referring to creating a list I am referring to the list that appears to the left when writing an e-mail. The list that is created from the address book. It lists each name only once even though there may be multiple e-mail addresses associated with the name. In Outlook, if there are multiple e-mail addresses associated with one name, the list repeats the name and shows the additional e-mail addresses. Some contacts in my address book have three and four e-mail addresses. Outlook lists all those addresses by repeating the name.