Iam getting back to blender after some years (I was just modelling ocasionally for simple figures, getting back again).
I used to use "smooth vertex" on 2.7 to make cleaner and flatter faces on the mesh as I was modelling, It helped to maintain from the beginning a nice model for 3d print, or clean faces in any ways. The "smoothed" vertex located into a better position if required.
Now I can see the "smooth" icon on the left but I can´t select it. :(
What am I missing?