I've noticed that metasequoia, despite 'mirroring' also has a 'sym' button. Is this for symmetry and have the same affect as mirroring? I played with the button, it didn't seem to do much and a couple of times the button was grayed out.

Also wondering, I can 'create' in metasequoia - it looks like it's meant to add verts, lines and faces but after selecting three vert points, the tool stops and I don't see my new lines appear. Any ideas what I'm doing wrong?

I was trying to make abs on my torso, ended up increasing the mesh by 4 but that made it so that I can only manipulate the model with the move tool - to many polys to do much else now it seems.