To create the hosted and embedded signup forms, Campaignzee uses the fields that are present in the Mailchimp list's Audience Fields and Merge Tags settings, and the list's Groups.
To add or remove audience fields, follow the instructions listed in the Add and delete fields in the audience settings section of this article.
To add interest groups, follow the instructions listed in this article.
To delete interest groups, follow the instructions listed in this article.
Once you're done updating the list's audience fields and groups, log into Campaignzee to synchronize the new fields (or click the Sync button in the top navigation).
If you are using the embedded signup form you will need to copy the new embed code and insert it in your signup page.