It seems there isn't really any documentation on this anywhere; at least, when creating the tournament, there is no way to see how it will look before it actually begins. I will report back on my round robin experiment, but it's slow as it requires all the players to join (unless it's possible to do so with dummy accounts somehow?).
You can create a private tournament and look at the Settings of it. That way you can view the settings of the tournament without having to play any games on it.
And presumably there is no way to stop a tournament at all once it's under way? (Even voting to end is not an option, which makes sense, but makes it difficult, as all participants have to either surrender or get booted, each round.)
Nope, but if you actually wanted the tournament to start you would only have to have 1 round in total for the entire tournament. If you enable "Practice game" on the template you used to make the tourney, all players can surrender on picks without hurting their stats.
Edited 2/21/2022 18:30:40