Fly: chord memorization drill

I think the first thing I need to do is chord memorization. I'm finding that if the chord is displayed anywhere on the screen, I simply type the chord, without actually really thinking about the letter it represents - this is bad.

So what I can do is turn off the input chord display and letter highlighting; I keep the steno key display on because I'm still memorizing the key positions (although I have to admit I've nearly got them down after only about fifteen minutes' total practice). I can then re-enable input chord display when I get stuck, which at this point is essentially for any chord that's more than one letter, except Q = KW, which is easy.

The problem with this is I have to take my hands off the keyboard and click the mouse. It would be way better to hit a key combination and have a chord hint displayed for half a second, after which it would automatically disappear again. That shouldn't be too hard.