Oh sorry, I didn't think it was vague. I guess I was the only one that could understand what I said.lol
Ok here I screen cap what I wanted to do. I already have a left smirk, so I want to make another duplicate of it, but with a right smirk.
I didn't try instancing before, since instancing is just an interactive way to model both side at once.
I've already got the object I want to mirror, so instancing wouldn't do me anygood as far as I know.
Methods I've tried.
I used mirror blendshapes in koshigaya studios, but that kept crashing my computer, so it didn't work.
I've tried duplicating with a -x axis scale. I've tried mirror geo.
I've tried reversing scale on the base object, free transformation, to get rid of the -1 x scale and duplicate, that didn't work either.
Is there a script that would do this? I don't think maya has a built in mirror blendshape tool.
I hope that was clear.