%Sp displays the current play pitch in percent.
I don't see any way to display the current play speed (if you are changing them separately as I do when listening to audio books).
Also, I don't see any way to set a touchscreen area to change the play speed (have to go into the Pitch screen and then set it, or load a bookmark that was saved with it set already).
Do those options exist and I just haven't found them yet?