This is something I stumbled upon a few weeks ago for looting with slaves.

Bind “Interact with Target” in the key binding menu. Go into the “Interface,” go down to “Mouse” and select “Click-to-Move.”

Now if you have a dead mob selected in the slaves window, after pressing the “Interact with Target” button, the slave will actually run over to where the mob is and then loot it, how ever this breaks follow. This will not break follow if you are standing close enough to the mob to loot.

Here is a video I made basically poorly describing what I have wrote in the above paragraph.