This allows you to start with a high-level perspective of every task within your Workplace, and then drill-down to see exactly what you need.
How do I view all Spaces?
Hover over the left sidebar and click on the top icon to show EVERYTHING! This will show you all items you have access to within your Workspace.
Pro Tip: Once you've sorted and filtered your tasks while viewing all Spaces, make sure to save this view to your Favorites! This feature allows you to save your customized task filtering and sorting for later viewing.
See the power of sorting and filtering tasks here!