Oftentimes when I run into an interesting spot in a drill, I would like to play that board runout over and over with different parts of my range and not just the particular hand I happened to have.
So in addition to “Repeat hand”, something like a “Loop board with range”. And then you’d also need a “Quit loop” button to continue on to the next hand.
Actually, this loop wouldn’t need to be part of the actual drill (and affect its score). Maybe it could be a link that opens a separate practice drill. Then you wouldn’t need a “Quit loop” button.
Oh and also a “Play from here looped with whole range”, to play from a specific spot, like the turn.