When you log into Handyfiles you see the Home folder, which cannot be renamed or deleted.
If you are the account Administrator, you will see the full directory tree. If you are not the Administrator, you will only see the files and folders to which you have been granted a sharing permission. If you have access to a file or sub-folder that is not at the top-level and you do NOT have access to one of the folders above it, it will appear at your top level, even though it is not at the actual top level.
Any user can create a folder and set permissions for it.
To set permissions for a folder or edit it, right-click on it and select from the options.
