1st, 2nd, 3rd URL. What is best setting?

Hi, I have question. What does 1st/2nd/3rd Click URL mean? If I put 3min/page. Do you go on primary URL, stay 3min, then go to 1st Click URL and stay 3min? How long do you stay in 1st/2nd/3rd Click URL?

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It is just the order we visit the URLs.

First we pick an URL from the “1st” field, then we wait “time on page”, then we pick an URL from the “2nd” and so on.