On this page, you can read how to use the option “First time redirect” on the rule.
When users visit a certain page for the first time, a cookie is activated on their browser and they are redirected according to the rule settings.
From that moment until the cookie expires, if those users come to visit the same page again, they will not be affected by the redirect.
The cookie duration can be changed in the “Settings” tab in the plugin settings panel.