title: Qt Creator qml: Use (extra) Qt Components library (ubuntu)
body: <p>When I create a new Qtquick qml project and modify a qml file in "Design" mode I see a limited number of Qt Quick Basic components under the window Library QML Types
  (like <code>Rectangle</code> and <code>Button</code>) </p>
  
  <p>When navigate to the folder <code>/opt/QTSDK/QtCreator/lib/qtcreator/qtcomponents/</code><br/>
  I see a lot more components like <code>CheckBox</code> or <code>RadioButton</code></p>
  
  <p>How I can use these / see these in Design mode? </p>