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 email@example.com, firstname.lastname@example.org or email@example.com
From here, you can simply type in the group email address and click Add.