In Zoho Docs, folder sharing use case can be achieved through Workspace. you can create Workspace and invite your group members, where user can create folder (workspace) and invite others to view, edit the files based on the permission set by the workspace owner.
Benefits:

1. Whenever you add new files to a workspace, they get shared to all the workspace's members automatically. No need for you to share each file again to a set of email addresses.
2. Consider a situation where a new member joins your work team. Whenever you add him/her to your workspace, he/she can see all the files that are there. The workspace acts as a repository.
3. You can set different permissions (Viewer or Collaborator) for each of the members in your workspace
4. You can better organize your files within a workspace by creating folders
5. You can configure whether notification emails (sent each time a files shared) need to be sent to workspace members or not

Steps

1. Click on "new" option in the toolbar and select "Workspace" option from drop down menu.
2. A dialog box appears, enter the details of the Workspace and click 'OK'
3. Workspace created will be listed under 'My Workspaces' on the left side folder tree.

For more details refer: Create Workspace.

Steps

1. Select a workspace from the left side panel.
2. Right click on Workspace and select 'Properties' option from the drop down menu.
3. A pop-up dialog box appears, where you can edit permissions(viewer/collaborator) to the user, delete users and check the Workspace details.

Steps

1. Select a Workspace to create sub-folder.
2. Right click on the Workspace and select 'Create Folder' option from the drop down menu.
3. Assign the folder name in the text box and press 'Enter Key'.

For more details refer: Organize Folder

Steps

1. Select a Workspace from the left side panel.
2. Right click on the Workspace and select 'Upload' option from the drop down menu.
3. A dialog box appears, click on browse to select files from your desktop.
4. After selecting the desired files, click on 'Upload' button.

You can unsubscribe from a shared workspace, if you do not want to continue being a member of the workspace. Once you unsubscribe from a shared workspace you will not have access to any of the documents uploaded in that workspace. In addition, owner of the workspace will also be notified when you 'Unsubscribe' from the shared workspace through email.