GDPR

Hi
I use the addon and at the bottom of the settings page there is a section for
“Membership Levels and Lists”
“For each level below, choose the list(s) that a new user should be subscribed to when they register.”
Each level has a list of forms and an option which seems to autosubscribe to a mailchimp list. One of these lists is highlighted and I cant find out how to unhighlight it. Conseuquently I have a large mailing list and growing making me not compliant with GDPR. Can you help me unhighlight this setting please.

Thanks

Andrew