Default [Q] Change Swipe Down App w/ Dot Case?

Just got my M8 today. Love it so far. Went ahead and s-off/root/bootloader unlock'd it, and have been getting it back to AOSP as much as possible (GEL & Xposed FTW).

One of the things i've been trying to find a way to fix, is to use Google Now voice search for the swipe down action for when the dot case is on and the screen is off (for those without the case, it launches HTC's own voice search which sucks IMHO). I use Tasker/Autovoice + Google Search API to control my home automation via Google Now, and it would be awesome to be able to do so just by swiping down on the case.


Any thoughts/ideas/resolutions?

Thanks!