I am using X mirror to move vertices, edges and faces on one side of a mesh, and i get the other side automatically adjusted, provided the mesh is symmetric of course.
However, while this works great for existing elements, Blender does not generate the symmetry when i use
Is there a reason for why this has not been added to Blender? Or am i missing an option to enable symmetric addition of verts? btw: Of course i know the mirror modifier, but sometimes its just not feasible to use it.