.....
include /etc/proftpd/conf.d/h.conf
include /etc/proftpd/conf.d/x.conf

<VirtualHost x.y>
MaxLoginAttempts        3
RequireValidShell       no
DefaultRoot             /home/x/
</VirtualHost>

<VirtualHost h.y>
MaxLoginAttempts        3
RequireValidShell       no
DefaultRoot             /home/h/
</VirtualHost>