Yes, use the add function ("+Add" button in your network) then enter the space name or the email address of the person you're searching for. If this data exists, you can then send a request for access. If the request for access is not accepted, you will be notified the next time you log in to your Joomeo space.
Maybe now is a good time to take a few minutes to see the main functions offered by Joomeo. We have prepared a few tutorials and videos on this topic for you: