On the left menu, you will see a list of your projects.
Clicking on the blue squares on the right switches between projects.
The number in the square indicates the sample size of the project.
Clicking on an orange box will add a project for comparison.
Click on another box to switch between projects.
Pro tip!
You can choose the same project by clicking both the blue and the orange box, and then use filters to compare two profiles within that project!