I wrote a patch for the idesk which allows the use of mousewheel to execute commands. It can be used, for instance, like this:
Lock: control right doubleClk
Reload: middle doubleClk
Drag: right hold
EndDrag: right singleClk
Execute: left doubleClk
Execute: middle singleClk
Icon: <path to your 3l337 icon>
Command: <toggle mute command>
Command: <set volume command +8>
Command: <set volume command -8>
Created attachment 27232 [details]
idesk-0.5.6-r1 (update with patching)
ebuild which includes the patching procedures.
Please send your patch to the idesk author for review. We wont maintain user submitted feature patches.