How do I do a complete save?

So I want to know if there's any way to save the whole layout*1 to webstorage or something for each individual player.

*1 Save the amount of X, Positioning of blocks and so on.

There is a way to save the entire state of the game. Just use the System Save. If you only want to save that one layout, there are a couple things you can try. You can save everything, and then OnLoad, reset everything you didn't want to save.

The other thing you could try would be to loop through everything on your layout and save it to JSON.