In case you missed it, here is a step by step guide from the video:
- Change between upper and lowercase letters by pressing the caps lock button to the left of the space bar.
- Press the font button at the top left next to the power button.
- Use the up and down buttons to select the font, size, width and style options.
- Use the left and right buttons to change the highlighted option.
- Press the OK button to confirm changes.
- Preview the label by pressing the preview button at the top next to the font button.