1. To highlight the text, select the Cursor button in the toolbar menu. It looks like this:
2. Select the text you would like to highlight by dragging your cursor across the word or sentence(s). Right-click your mouse to see the drop-down menu.
3. Select Highlight this.
4. The highlight color palette will appear; click on the color you want to use for this highlight.
5. The text you have selected should now be highlighted.
The whole process: