Thank you for the detailed feedback. You are right, there should be a way to stop the walk while it moves. We will add that. ESC to close is however intended. The Instruments panel closes with the button at its bottom, but more intuitive would be at the top and we will move it there. The walk is guided on purpose, so WASD and dragging don’t work, but we should say that.

For the record I did not have any of the issues of the above person. I did try to click off the initial image but when I couldn't, I saw the big yellow button which I pressed and realized it was on rails and everything went smoothly from there.