Six tools are preset in the toolbox, which is the most frequent access, no trace browsing, screenshots, translations, small windows, sharing. Clicking the "Get more Tools" link in the lower-right corner of the toolbox opens the Tools page (pictured below). Clicking the "Use Now" button on the page automatically downloads the tool and prompts you to install it.
When you check the prompt box to display on the toolbar after installation, the tool also displays an icon on the toolbar after the installation completes.
The installed tools will be displayed in the toolbox. Open the Toolbox, click on the tool icon, and you can start using it.