So, you've killed that mob, and you want to loot his corpse, huh? Get some credits and maybe some other loot. Maybe even a Yalm! Problem is, corpse is hidden below floor or underwater or, if you're outside, buried below the ground (happens a lot with vultures). So you try all kinds of scanning techniques with your mouse: left to right, down a tiny bit, left to right, etc.; or, maybe get a bird's eye view of your char, turn in circles, gradually moving the mouse further and further away; or just randomly move your mouse all over the place, sometimes in a circular motion, sometimes side to side.
Wouldn't it be nice if you could just hit a key or right click an icon and have the closest dead mob's loot backpack pop up? And, if he's not the one you want, loot him so he "disappears" and repeat? Wouldn't that be nice?