How do I add a contact to our weekly issue list from a checkbox on a form?

How do I add a contact to our weekly issue list from a checkbox on a form?

Our company often publish public reports that are downloadable through forms on our website.

When someone fill in the form (email field), they can tick a box that says " I want to subscribe to the newsletter".

How do i make it so when someone tick this box, their email is added both to the below zoho campaign list:

- weekly issue
- this public report download list