I'm trying to use the glass slide (i have the first sample) but it says I need further knowledge before I can power it on.
"Then, go through the doors just beyond the lab and down the hall to enter Operating Room A.
Inside, go around the chair and look at the control panel. Make sure to press the ON button and then move the switch on the right side to power it up correctly. Now, click on the chair to sit down and press the arrow button to begin."
I'm not sure what I missed.
