Camera Widget and take photo

Hi every one I am trying to create a page to can take a photo by the camera. - my first question is why I can not see “HeroHeader Selfi” in building block because I am following the demo video that I found linked below: - and my second question is why I can not see camera widget in toolbox    
1 answers

Check for some samples of several camera-widgets and at the bottom button View the code by following the github-link at the top.