Click it, and you can set up custom shortcuts for some of you extensions. Scroll down to the bottom and you'll see a Keyboard Shortcuts option. For example in german I have to use Entwicklertools. Just head to chrome://extensions/ in your browser's address bar to open up the extensions page. Hint: If you use another language, the dev tools has also another name. Displays your browsing history in the tab. Switches to the tab at the specified position number on the tab strip. Returns the tab to its original position. Then you get the + button to add Google Chrome. Drag a tab out of the tab strip and into an existing window. To make life easier, check here the list of Google Chrome shortcuts to use on Windows, Mac or Linux. For people who want to use the shortcut to F12 (like in every other browser and/or os), you can use the answer of paulj, but in the Shortcuts tab, you first need to click in the left list at App Shortcuts.
One of the advantages of having a keyboard for surfing the internet or using applications is that you can use shortcuts to perform actions quickly, when compared to using touch screens, for example. Computer Shortcut keys are generally required for using to use the computers or PC users were fast. Check the Google Chrome shortcut list to make life easier and save time while browsing (keyboard and mouse). Keyboard shortcuts can make it easier to interact with your computer and saving you time.