In Wired Plus, a contact list can be public or private.
The privacy settings of the list will determine if it's shown on the preference centre.
A list that is public is visible on the preference centre.
A list that is private is not visible on the preference centre.
You can choose the privacy settings when you create a new list.
Alternatively, you can edit the privacy settings at a later time.
How to edit the privacy settings of a list
On the main navigation bar, hover over 'Subscribers' and select 'Lists' from the dropdown.
You will be able to see which lists are private and which are public in the 'Visiblibility' column.
To edit the visibility of a list on your preference centre, click on the list name.
Then, click on the 'List Settings' tab.
On this page, you will be able to see checkboxes to make the list public (shows in preference centre) or private (doesn't show in preference centre).
When you're done, click 'Save' at the bottom of the page to update the settings.