Tips: Run a few trials beforehand just to get the hang. Also while recording, use the "pause" button copiously, e.g. when you need to click into another webpage or change something on the desktop while doing your demo.
You can switch quickly between the windows during your recording: Alt+Tab. On Mac it's CMD instead of Ctrl e.g. - CMD+Tab
Other handy key commands are Ctrl+B/U/I for bold, underlined etc., Ctrl+F to find sth, and Ctrl+X to copy and cut a text, so you can cut it and paste it elsewhere. And Ctrl+K is to insert a hyperlink into a highlighted text.