Thanks
1) The technician punching the tables to fix them is intentional yes :) It was a free animation that I found funny.
2) The flooring space I'll need to rework, I didn't think of uneven cell quantity.
3) You can press Delete keyboard key when hovering with your cursor above a machine in order to delete them, it doesn't refund the cost though. I will add a way to move the machines also probably at some point.