There isn't an easier way at the moment.
The plan is to change the Conditions for cells, screen sets, etc, so that they can use a formula, like events do now. That would make it possible for you to create 1 screen set with a formula like "isRound and roundNumber <= 8", which would cause the screen set to be used for each of the first 8 rounds, instead of what you have to do now, which is create a screen set for each round.
By implementing this, we can also get rid of Property Groups, and just have Property Sets for cells, making them less complex. Then perhaps a design mode that will lock the main display to the screen you are currently working with on the Layout tab (ie, see changes as you make them), drag-and-drop of cells, rows, columns, on the Layout tab ... and the list goes on.