When adding automation to an ad, one can create a list of contacts generated from the ad.
After you create the list, it does populate in the Contacts -> List area.
The 'save' button on the record never becomes clickable after creating a list (and workflow). It states: You have not made any changes that need saving.
When you X out of the window, the name of the workflow stays in the contact record, however the name of the list does not.
You can not reuse list names when creating them this way and you can not have multiple ads combine into the same list.
The name of the list associated withthe ad details should stay visiable on the record so it is easy to jump to that list instead of having to go back to 'Contacts -> Lists' to find it.