In Pages, with text selected, either choose Format > Font > Baseline and then Superscript or Subscript, or press Command-Control-plus for superscript or Command-Control-minus for subscript.

This article explains how to highlight text in Pages, including how to leave notes once you've highlighted something. Pages allows you to highlight text so a specific section stands out from the ...

Pages on the Mac has a reputation for being too basic because Apple gives it away for free, but it hides exceptionally powerful word processing features.