Doubles Tournament Rounds

Hello! When making doubling tournaments, it could be so that you can choose how many rounds there are, because in the meantime you just press the wrong button and you just lose, you could then start again and the highest score will stay on top. The rounds would be 1, 2, 3, 4 and 5.

You can't make mistakes when doubling. That would be stupid and what would the time control be like, every time you lose, the 100 min time starts again and if you get 4k , some more time is added. I think they would last a lifetime, I suggest.