Project Folders can be arranged in a hierarchical structure.
Moving your cursor over a project name will activate two small icons to the right of the project name.
The eye icon will subscribe you to the project, and you will receive notifications of issues and test runs on this project.
Clicking on the Star icon will add this project to your list of Favorite projects.
It will then appear on the home page when you log into SurveyTester.
You can remove it from your home page (only) by clicking on the star icon on the project icon on that page.