Allow remote access without enabling target users to see "my computers" list

Hi all, I'm using teamviewer to provide support to my parents/friends for issue with pc and mobile devices.

I want to be able to access a pc remotely without human presence but without allowing someone that access this computer to access "my computers" list.

In the past I was using "teamviewer host": I can access my parents from my teamviewer instance but thanks to TeamViewer host installed and configured on the target machine.
Now I cannot find Teamviewer host on the site, so I have to installa teamviewer on the target machine, connect it to my account but in this way who is using target machine can access others computer I linked with my account...

How can I solve this?