FTP chroot/user jail?

Installed v7 lite as an evaluation/lab under esxi 5.1 and need to do some ftp testing.

I have active directory configured and have a ftp user defined.

I've created a FTP (only) share - no SMB, NFS etc. The only user that has access to the share is the user defined in AD. (and right now, it's the only share defined).

When the ftp user logs on (once I found that it's DOMAIN+user, not user@DOMAIN) they end up in / - not in /share/sharename. Typically in FTP there is an option to
chroot of an ftp user, but for the life of me, I can't find this option.

Thanks