Passwords for each folder

In setting up my site I wonder if it is possible to have different folders nested in the site to be accessed by a username or password that will allow access to that particular folder.

Example.

Name of my FTP Site
Client1 Folder
Client2 Folder
Client3 Folder
I would like each client to access their folder but only their folder.
How can I do this.
Thanks.

By "site" I assume you mean HTTP server (not FTP server). In case of Apache, this is possible using e.g. .htaccess files (see the Apache docs), but this has nothing to do with FTP or SmartFTP.

Ok.
Think I understand. You set up all folders and passwords on the server side.
Although one can set up different folders in FTP Smart, Smart cannot control priveledged access to each folder. Is this correct?

I'm not sure what you mean by "one can set up different folders in FTP Smart" (you can create folders in SmarFTP, if that is what you mean), but I guess you've got my point.