This block would have to variants, working like the copy paster, and zone copy paster respectively.
Map block eraser:
This block would have a button and a receiver thingy, if you put a block of a certain color in the eraser, it’ll tell you how many of that block in that color is in your map. The button is if you want to erase them all.
Zone block eraser:
Works the same as map eraser, except only erases the blocks in that zone.
