You can have unlimited lists in your account and have the same subscribers in multiple lists. To move subscribers between lists in your account, follow the easy steps below:
Head to the Subscribers page on the left menu.
Select the List the Subscriber(s) are in, or select View All to see all subscribers in your account.
Select the Subscribers you want to move/copy
Select Actions, then click either Move to list or Copy to list.
Move - removes them from the current List and puts them in a new List.
Copy - keeps them in the current List and add them to a new List.
If you want to see which List(s) a Subscriber is in just click the 3 dots on the far right, then click Edit. You can also view and change which List(s) they are contained in here.
You cannot manually add people to a Planning Center List from within Clearstream. If you want to add someone to a Planning Center List, you'll need to do that from within your Planning Center account. That being said, you can push new Clearstream Subscribers into Planning Center.