- Create your anchor and block.
- Set red, green, blue of the anchor to 4, 1, 0 (move 4 blocks, back and forth in 1 second, repeat infinitely).
- Enter rope editor.
- Set texturenum to non-zero with q/z so you can see your piston.
- Click on the anchor.
- Hold 5 and click on the block.
- Press F5 to refresh the level.
- See what happens.