pls make it so things fall not like in minecraft that is flots i realy want it to fall if the blocks under it got distroid
That's an issue that I'd also like to solve, but can't due to performance reasons.
Right now, the blocks are fixed, and the CPU doesn't have to compute a lot of physics. For the blocks to fall freely when you crush something under them, all the blocks should be active physics objects (Rigidbodies, in Unity's terms :) ). And this will require a lot of physics calculations that will slow the game very much.
You can open a creation with a lot of blocks, and make an earthquake there. Because the earthquake makes all the blocks physics objects. And you can see that infernal lag this is causing :)
I'll try to find a solution to implement your idea, because it will be cool indeed :)