I don't understand exactly what your problem is. Could you explain it in more detail?
If I destroy the blocks that are visible on the screen, the blocks do not appear again. In other words, I need to create new blocks on the invisible part of the screen. Let me try to explain in more detail; I spawn more tnt and when it explodes, it destroys the blockers, if I spawn more tnt at the same time, new blocks do not appear on the screen until the pickaxe falls. I need to produce more blocks on the invisible bottom part of the screen. I hope I was able to explain. I don't want to take too much of your time, sorry. google translate