How to display vertex grid of 3d model in blender?

Question

Blender

How to display the full vertex mesh of a 3d model in blender like in the video at minute 2.55: Video (pressing windwos + z on Windows did not help)
And also how to move the camera to the right to the left, etc. and not rotate around the object (like in unity you press the right mouse button and move in the scene with wasd).

Answer 1

Good evening!
Hold the mouse wheel to move the camera around. And to move, hold down the shift and mouse wheel.
Your 1st question is not well understood.