Short answer
No. Permissions are set at the Index level, not for individual folders within an Index.
Full explanation
AskTuring’s permission system applies to the entire Index. When you give a user access to an Index, they inherit the same level of permissions for all folders and files inside it. This means:
You cannot restrict access to only certain folders within the same Index.
If you need different permission levels for different sets of documents, you will need to create separate Indexes and assign permissions accordingly.
Tips
Plan your Index structure with permissions in mind before uploading large numbers of files.
Use separate Indexes for sensitive material that only certain users should access.