Individual Fence Height Rollups for Tab Groups
Lets say you create a tab group, with "Favorites" and "Utilities". "Favorites" will likely have many fewer items in the fence, so you would like the rollup to be much smaller, say 5x1. When you mouse over to "Utilities", though, you would like to be able to see all of the utilities in one place, which requires something like 5x4. Currently (as far as I can tell, there is no option to persist different rollup heights between tab groups, which would be nice to prevent both empty space for "Favorites" and scrolling/hidden icons for "Utilities".