Solutions
1. Put the box on the pressure plate and digit the numbers written on the side of the box
2. Put the box under the purple light emitted by the projector and insert the purple code multiple times
3. Put 3 boxes on the pressure plate. Use other boxes to get high enough to digit on the new panels
SOLUTION A Move the purple light with the blue and red panels in order to light the rectangle on the floor (and digit it on the main panel)
SOLUTION B Do the same thing but for tic tac toe (digit using the position given by the letters)
SOLUTION C Align the boxes so you can read "Exit" and point the light towards it
SOLUTION D Look at the flickering Exit sign and start writing down the morse code (there's a pause before it starts the combination)
SOLUTION E Count the broken lights for each triangle sign (the order is top left, bottome left, top right, bottom right)