Is there one (or more in succession) command with which I can make about 2 blocks every 5 minutes rise in an area of 150 × 150 blocks of lava? If you have one, please write it so that I can copy and paste it. Coordinates don't matter, you can take anything.
Ps. I play the Bedrock Edition
But you can of course write in a command block:
/ fill [your coordinates 1] [your coordinates 2] lava
And then you do a lot of repeaters for the desired time and they go to the next command block and there's the same command, only the y coordinate that describes the height is increased by one or two.
And so it goes on. However, an area of 150x150 blocks may be too large. (22,500 blocks)
OK thanks. I would prefer it if I could solve it with 1 or 2 commands, but then I have to do more…
Yes, unfortunately I think there's no other way.