I don't think this numeric pad solution is much of a help really, as the next playback speed is x2 which is pretty "chipmunky".
Anyway this is what I would do in your position - enable elastic "varispeed", set track to "ticks", and then set the tempo to something faster like x1.5 (e.g. a tempo of 120 becomes 180) so that you can still hear what the interviewee is saying but isn't completely chipmunked, highlight the good bits, then switch the elastic back off and "revert". You could probably use polyphonic as well if you prefer but for me using varispeed feels a bit more old school.
It'd be really nice to have a varispeed control on the transport window though wouldn't it. Reckon I could get mixes done in half the time
