You can highlight sections in your script from the selection toolbar to mark up text in various colors for later reference. 

How to highlight text

1. Select the text in your script you want to highlight. 
2. Click the highlight color from the selection toolbar to apply or choose a highlight color from the dropdown menu. 
   

How to clear highlights from text

There are a couple different ways that you can clear highlights from text:

• Select the highlighted text in your script, then press Command + Shift + H (macOS) or Control + Shift + H (Windows).
• Select the highlighted text in your script, then click the highlight color drop-down and choose Clear highlight.