@Memo, great idea!
@Lena2020, boldly forward, for you nothing is impossible!
But here I have another question appeared. I in missions nothing at all, but for the love of sokobano decided to try this. And noticed that the back time added compensation. That is, if I press "play" after 10 seconds of the countdown, and then decided level for three seconds, then eventually get a time of 13 seconds. Is this true? Like this never happened before (or I didn't notice?)