Prevent users from saving files to specific directories in vault

We have a folder structure template that always has the same folder for each project. Some new users are, let's say, less concerned about following established procedures. I need to prevent them from saving files to particular folders but allow them to save further down in the structure. For example:

C:\Vault\Project\Sub-Project\Models

I want them to be able to save in the models folder but not the sub-project folder, where they're current saving. Is this possible?

Thanks!

SolidworksAdministration