i have mine setup to walk back using the ` key, left of the number 1. and shift+` makes them move forward, directional keys make them move left right forward and back also. but the ` key makes it where i dont have to reach very far to make them stop if i get death gripped or need to stop them on the fly. My tab key targets on the main and /follows on the slaves.

As a general rule of thumb you want to put the keys you will be using the most within easy reach. Which is probaly obvious but i've had to setup different people's macros, keybindings, etc that had their most used spells on #9 and down because that's the way they recieved them leveling up and they never changed it for some reason.