My Win8.1 netbook uses the function key together with f11 and f12 to push sound volume down or up respectively. This is all very well, but it's a bit of a pain in the neck as I have to reduce and subsequently increase volume quite often. I'd like a small utility that would let me first set my own low and high volume levels and then switch instantly between them, still (if possible) using function-f11 and function-12.

Cheers,
Harry
PS I have spent some time searching but have found nothing like this so far. Apologies if I have missed something.