Just list a free number to ask the questions and record the answers, not jump all over
By this time a user has so many windows open it is difficult to find where the response is coming in and then where was the page you were on to record the number in the few seconds left.
Thank you very much for the special handling after I wrote the above comments. I was able to get my email account back from the hackers who have stolen parts of my personal Identification again, and have a strong PW again. I just can't seem to leave one place on my device, go to a second place, and then return back to the original spot without getting lost. That is why I prefer texts, they always come in at the same place.

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Robert Hess commented
Maintaining control of my primary email account is critical to me, but if you were referring to how critical was my suggestion being implemented by Yahoo to me, my response is "not at all". I just mentioned what I find difficult is where will I find the info you intend to send me, and where do I go to record the response, to send the answer back to you within the 60 seconds. Again, thank you very much.