Answer 1

Yes, that's possible. However, it is not something that is really necessary in terms of simple use.

Instead of displaying the image shown on one canvas within another (drawing the canvas to another), a better approach would be to just replicate the image of the second canvas by just using one canvas.

I hope I clarified it a bit for you.

For more information, please read here: https://stackoverflow.com/questions/11625767/canvas-inside-canvas-of-html5/11631741#11631741