How can I record the responder's time focused on each page of my survey?

Timer question seems to record the duration spent on that page. Is there any way I can record the time focused on the page, meaning the page/survey website is on the front page of the subject's window, and the tap of my survey is active. It seems that if I build website/app feedback, "time focused on site" is accessible, but how can I record this information as well in my survey in the survey platform?