this tutorial shows you how to get a block made on scratchsource 1.3, then upload on to scratch without the block becoming obsolete/something else! I WARN YOU, in order to get your block on right, you must follow the directions very carefully... when you're trying to save it, you MUST put it in the right place, or otherwise i cannot be yelled at if you can't find a sprite, or something goes horribly wrong with other files, or your computer explodes and popcorn comes out of the printer, or something insane like that.
