[Forminator Pro] Adding Tags when using Mailchimp integration

We have several different Mailchimp “drip” campaigns sending short classroom activities to teachers on a regular basis (mostly either daily or weekly). I would like to have a form where a teacher select from a list of 6 different types of activities. When they submit the form and I’m automatically adding them to a list on MC, I would like to be able to include a Tag so that they are grouped properly and start getting the appropriate emails.
Bottom line, when crafting the MC integration, I can select any of the fields from the list. What I’d like is a field for “Tags”, too.