How to restrict FTP account

I want to set up an FTP account that can access specific folder only (either ‘mp3’ or ‘test’ not full access) after its account is verified by a fpt client. I can’t figure out the way for this effective configuration.
I’ve tried to create 2 accounts but both of them access as FULL control. Help me please

Control Panel -> Domains -> Remap Sub-Dir

Set /home/user/test to remap to http://yourdomain/test