3rd canvas how do you find out or get the 3 canvas in the lab?I have 8 awards,15 puzzles, all the tech stuff is max out.Thank you.Anyone please?

I'm afraid I don't know what you mean by '3rd canvas'. Can you describe what you mean a bit more?

The first canvas or (chalkboard)in the lab, is the bath, the next one is the statue.The next is ? The canvas is blank, there is rolled up plans for something on the floor in the lab, how and what is it. How do I get it on the canvas (chalkboard)? Thank you, please.

Ah. I see what you mean. There is no '3rd canvas'. The chalkboard is only used for the repair of the bath and the statue. I imagine the rolled up plans you mention are only there as decoration.