If you have finished using the Guidethrough Developer Chrome Extension for the moment, there are three options for making the extension inactive.

You can either;

1. Minimise the Guidethrough Sidebar so that it is still available when needed.

Just click on the left chevrons to minimise.

This minimises the Guidethrough Developer Extension to a tab.

To re-open, ready to use, simply click on the G tab.

2. Make Guidethrough dormant

Click once on the Guidethrough G logo in your Chrome browser toolbar to make Guidethrough inactive (to reactivate Guidethrough, again simply click once on the G icon)

3. Deactivate it through the Chrome browser toolbar

See: How to activate and deactivate the Guidethrough Developer Chrome Extension knowledge base article for detailed instructions on how to do that.