Mark Selected Text

To mark the text you select in a document:

Select the text you want to highlight.

Note: To mark more than one part of the document you are editing, press and hold Ctrl (Meta on Mac OS) and using you cursor select the parts you want to highlight.
Click the small arrow next to the Highlight icon and select the colour that you want to use for highlighting.
The selected text is highlighted.
Click the Highlight icon to exit the highlighting mode.