Remove Netflix titles from the previews list?

I would like to delete some titles from the preview list, but I do not know how. Can someone tell me how to get away? Preferably on the SmartTV or mobile phone.

The Account tab takes you to Account Settings.

If you scroll down you get to the title course tab. There you can delete desired titles. But it takes 24 hours until the title disappears in the preview bar.

This allows parents to monitor what their children have been watching.