Reviewer: Collapse next-review times on answer buttons?

Would be neat to have an option that caused the estimated times for next review to be shown directly on the three/four answer buttons instead of on an extra line above them.

That way the line could be omitted entirely, halving the space the bottom bar occupies.

The only thing “lost” by this (the Again-Hard-Good-Easy strings) wouldn’t be a loss either since I’d be surprised if anybody didn’t know the button’s meanings within an hour of reviewing cards with Anki.