Puzzle level hints and solutions?

[BCS]

I figured out I can push the balls through the incubators but how do I get the other one back into its original slot?

[Floyd]

Try to place the left ball into the left incubator without pushing the other ball. This should help !

[BCS]

Cool, I figured out the tile can pass through the boxes as well. I got up to this:

http://steamcommunity.com/sharedfiles/filedetails/?id=629131677

and I figured out you can crawl on the side of the top block the camera doesn't show but I guess I need more time to think about how to get the ball up there to push it down into the hole on the bottom.