Folders can be used to organize content within your structure. For example, if you want to add issues from different projects but keep them separate from each other, you could create folders for each project. If you use Generators to add and organize issues, using folders allows you to limit the scope of your generators – or even have different Automation rules for different parts of your structure.
To add a folder to a structure, open the Add menu and select Folder.
The folder will be added directly below the currently-selected item.