Making units follow another unit?

Okay, I didn't know exactly what to name the title, but its close enough.

I was looking at the unit editor and remembered you could change unit color there, and I was importing several of the same model just to import a different skin to change the color of it. I was using the special effect - attach trigger to attach the model to my units.

Here's the prob. I'm importing the same model over and over because I want it to be a different color. I was to make the model a unit, and follow around the casting unit as if it was attached. I noticed peasents have no collision, and would be an easy replacement, so I was wondering what I would do to create a peasant that would follow around the casting unit as if attached to it. I'm kinda stumped.

I tried a periodic event of every .01 seconds to move instantly the peasent to the point of the casting unit, but it looked to sketchy. Is there a better trigger I can use, or is there another way to recolor models like in the unit editor without having to import a new model and skin.

Not sure if this is the right forum, but it seems the solution will most likely involve triggers so this is where I put it.

Maybe I should rephrase all of that. Basically I want to recolor my model, like you can do with units in the unit editor, and I can only do that by making it a unit. So is there a way to in theory, attach units to other units?

Hmm.. I've tried trial and error and still can't seem to get it to look like it's nothing more than an attached model.

Thanks for all the help people :). Anyway, I found a quicker solution from a post about a year and a half back.. lol. Anyway, ignore this, problem solved.