Is there any way to mirror the mesh in Milkshape?

[Shenzai]

I'm editing the arms of a model and I need to know if there is a mirror option, like there is in Blender.
I could try to copy manually, but it would always end up slightly assymetrical and I wish I don't have to do that.
A mirror would definatly make my life easier...
Is there any way I can do it in Milkshape?

If not, what would be the best way?

[maybesomethingdunno]

I don't use Milkshape, so I don't know. But you might try CatOfEvilGenius's "MilkShape Plugin : Cat's Sims Mesh Mirror (http://www.modthesims.info/download.php?t=405899)"