Host feature for SMB and FTP not working properly? OS 6.6.0

And yet another problem/question.

On both of my NAS 204 the feature "Hosts" for shared folders appears to be not working at all (form SMB and FTP - did not check other protocols)

FOR SMB - when I set a IP address and click OK everything lookes normal, but when in main settings window I click Apply (Zastosuj in my language version, right button at the bottom), settings window skipes to Security tab (first one) and when I come back to Hosts tab, the hosts list is empty. Tried several times with many shared folders - OS version issue ?

FOR FTP - I can normally set hosts, everythong is correct. When I'm logging in using WinSCP with credentials that applies to that folder from the computer listed in hosts I can normally view/edit files. But when I do it from another computer (not listed on the hosts list) with the same credentials, I can still view/edit data. If I understand correctly, the hosts feature should prevent such action. It is also possible that I don't understand it properly.

EDIT: for clarification about FTP: user have to log (no anonymous allowed), but even when I've changed to anonymous and set a host other than my computer and I logged from my computer, I was still able to view/edit/delete etc.