Yes! If you have a group email list, from the Guests page click the "Import Contacts" option and choose "add a group email" on the next page.
A group email address, also known as a distribution list or listserve, is a single email address that goes to multiple people. Some examples are firstname.lastname@example.org, email@example.com or firstname.lastname@example.org
From here, you can simply type in the group email address and click Add.