In Logs, most of the tabs, other than History, are work spaces for your crew members. They're places to organize tasks according to who should see them or work on them. Work spaces or "spaces" are very flexible. For example, you could have one space for the captain, another for the mate, and a third for the rest of the crew.
This lesson will explain the purpose of your default space, how to configure your spaces, and how to manage permission to your spaces.