I haven't done anything with the macros, but I did add some quick volume control functions.
If you want to do it the way I did, you'll need this program:
http://www.nirsoft.net/utils/nircmd.htmlIt's a command line program, but it doesn't popup any windows if run from Keybreeze. So, all you have to do is create a function to the command with the parameters you desire.
I set these up: (don't enter the stuff in parenthesis)
nircmd.exe changesysvolume -5000 (volume down a notch)
nircmd.exe changesysvolume +5000 (volume up a notch)
nircmd.exe setsysvolume 30000 (volume mid)
nircmd.exe setsysvolume 50000 (volume high)
nircmd.exe setsysvolume 10000 (volume mid)
nircmd.exe mutesysvolume 1 (volume mute)
nircmd.exe mutesysvolume 0 (volume unmute)
And I set my functions to "vol mid, vol low, vol high, vol mute, vol unmute, vol up, vol down." As long as my processor and ram aren't being too taxed this works far better than the volume buttons built onto my laptop.
There are a lot of other neat things the two combined can do, but, these should meet the volume control needs.
Hope this helps!