I did add some pet looting functionality when I added pets to the game but it's just a simple loot everything which wouldn't be great - bags would get filled so quickly, so until I add some kind of filter I just left that feature out.
I need to add something similar for the auto-pilot - so you can autoloot only epics, uniques etc., so maybe I can write something that can be used for both. I could maybe even use it for the E autoloot key