Try this,

On a default key binding, W moves forward, S moves back, and A & D turn left and right respectively as we all know.

So on your main leave these bindings the same but on your alt bind Q & E to do the same function as A & D This way you can run around with your main having your alt in tow and when you need him to turn with you tap either q or e. When the mob is dead hit your follow macro again and keep going.