Is there a way to add a local disk as a second share? Anamika October 20, 2017 11:45 Updated Follow Yes, you can add more storage beyond your S4 account with us. You can read more about servers of happiness and static server configuration here. Related articles Can I use Duplicity with S4? How many clients can I use with one S4 account? What is S4? What is Gridsync? Comments 0 comments Please sign in to leave a comment.