Also, it's really difficult to pull just one code block out if it has others below it. I can't figure out how to separate the ones below, which means if I mess up and need to get a code block at the top out, I've got a lot of rearranging to do.

Cool app though.

Usually in blockly you grab the one below the one you want, it's sticky with all the blocks below it. Then grab the block you want and drag off, then stick the whole thing back together.