Guide

1. On the edit toolbar, Select 'Text' option.

2. Add your text by clicking the 'Add a text box' button.

3. Add another text box and write the text that you want to superscript.

4. Duplicate the superscript text by clicking the 'Addition' icon.

5. Place the superscript text above the first text.

6. You may want to group the first text box and the superscript text box together to maintain their relative positions.

7. Once you're satisfied with the positioning, click 'Share' to save your superscript.