You can create two types of folders within the WCMS: a folder that displays in the site navigation with an index page, or a folder that groups assets such as images, and does not display in the site navigation.
Creating a Folder for Grouping
You can also create a folder without an index page. You can use this folder to group items such as documents or images.
In the folder tree, click into the folder to which you want to add a folder. Navigate to Add Content > Default > Folder.
Enter the Folder Name for your new folder following the WCMS naming conventions.
Click into the Placement Folder field to search for the parent folder.
Select the placement folder you want. Click Choose.
Under Properties tab, check applicable boxes for publishing and indexing.
Click Submit. The folder will appear in the folder tree.