A setting to enforce a maximum group count and/or a maximum width and height of groups would be very useful.
For instance, I am using a layout zone for a Solitaire script and I want it to have 0 vertical groups and 0 to 7 horziontal ones (which spread Southward).
Sometimes when a card is added to a group the game mistakenly thinks you are trying to insert a new group in between two of them, and if you already have 7 columns it shoves one of them to the bottom (and this table’s not big enough so some cards get put into your hand).