That would be nice. I set it up with a keyboard macro using AHK on windows. Every time I hit the hotkey, it executes the sequence to double the bpm then selects the next track. There are a number of these helper/productivity applications out there for various platforms. AHK is a bit fiddly, as you actually write scripting code to perform the operation. Other apps let you simply record the sequence and capture it to a key. But once you learn how to use it, it becomes addicting and makes library management much more sane for your particular workflow.
I use one of these things, too: http://gaming.logitech.com/en-us/product/g13-advanced-gameboard it has a bunch of configurable buttons (you can program macros with them as well) and I have groups set up to manipulate ID3 tags in common ways that make sense to me (like moving tracks between libraries, setting track ratings, etc.)