I add the following line to my main attack macros:

/script SetView(2);SetView(2);

Once you go in and set your view "2" to all the same in your config.wtf, you're golden. Then they all click mostly the same spot. My main is usually zoomed out a bit more so I have to click once on the corpse for my main to loot/fly/sell/etc. but then it's one click for all 4 alts, possibly 4 more just because quest items can only be looted one person at a time.

[edit] Change the following lines in your config.wtf file:

SET cameraDistanceC "50"
SET cameraPitchD "65"
SET cameraYawD "0"
SET cameraPitchC "45"
SET cameraYawC "0"
SET cameraDistanceB "30"
SET cameraPitchB "30"
SET cameraYawB "0"
SET cameraDistanceA "15"
SET cameraPitchA "30"
SET cameraYawA "0"