Well, you will need to have your toon assist you in some way so how do you plan on telling it what to do? You need to tell it to attack a target, heal/eat/etc. So you just make macros for what you need it to do.

The simpiliest form would me to

/follow maintoon

So, all you would have is a follower. If you want the toon to actually help you it will require macros. If I was just two boxing I would still have the same amount of macros I have now.