Use the tabs on the left side of the page to view your containers by a number different categories: ones that need attention (because they have holds or an approaching last free day), alarms you've set, tags you've added, containers you've marked as favorites, or saved searches. You can also see all of your containers in yard at a terminal or currently on a vessel.
The containers tab lists all of the cargo you're tracking. You can filter your container lists by status (on ship, available, not available, or departed terminal) and by region. Click the arrow by the filter at the top of the list, and select the status you want to filter for.