We have a site with a large number of folders and documents. I'd like to give a user access to a single folder. As I understand it, the user must be a member of the the site in order to do this. The trouble is if I make them a member of the site, they automatically get access to everything. I know I can elect each root folder one by one and set it not to inherit permissions and remove the user, but this is going to take me hours.
How do I give a user access to a single folder within a site?