Keeper Draft Help

Hey everyone. My keeper league is having their second draft. Our league keeps 8 and redrafts the remaining pool of rookies and vets. However, when I go to see how many rounds in the draft, it has 19 rounds. There should only be 11, since there are 8 keepers. Is there anyway I can change the amount of rounds for a keeper league? I don’t see any way to do it on the app.