Is there anyway I can zero my known words?

I’m new to LingQ and I did a mistake hitting the ‘i know all words’ button.
Now I understand what I have to do, but could not find a way to cancel that out.
Is there any?
tia

There is an answer to this in the Lesson FAQ. You can find this specific answer here: http://bit.ly/aB9RD8

Cheers

That’s exactly what I needed to know.
thank you!