You can create any number of subfolders in a personal folder. To create subfolders in a shared or public folder, you need to have the required permissions.
How to create a new folder:
In the folder tree, select the folder in which you want to create a new subfolder. If you do not select a folder, the new subfolder will be created in your personal root folder.
Note: Select a folder for which you have the appropriate permissions to create subfolders.
Depending on the app, the next procedure differs:
In the Email and Files apps click on
In the Address Book, Calendar, Tasks apps click on or on .
Enter a name in the Add new subfolder window. Click on .