In case you missed it, here is a step by step guide from the video:
  1. Press the fixed block button.
  2. Using the arrow buttons to navigate, choose your block length, number of blocks and orientation.
  3. Enter the details using the arrow buttons to jump between blocks.
  4. You can preview your label at any time by pressing the preview button.
  5. When you're ready to print, press the print button and your label will be produced to your requested size.