Undo viewed series on netflix?

If I do not want you to see that I have watched the series, can I delete it somehow? But only for the one series. Because there's always this red line underneath that you have looked at it and that must go. Can you just flush all the episodes to the front or what do you do?

Unfortunately, this is not possible: / I searched for a possibility about a year ago. After 3 months, it disappears by itself