You can save not only maps, but also entire folders inside another folder. This allows you to structure larger collections clearly, for example by topics, classes, projects, or school years.

Go to your folder, click the red edit icon, and then click the “Add folder” button. The following dialog will open:

Select the appropriate option and add another folder to the current folder.

Saved folders are not moved or deleted. They will additionally appear in your folder and can still be opened in their original location.