title: QML change views on Click
body: <p>i'm working on a project with my team.
  My job is to create a Gui with QML and C++ for an Embedded System.</p>
  
  <p>I have for each View a qml file.</p>
  
  <p>But now i want to navigate between them.
  This mean when i'm clicking on a Button, the view should switch.
  Every View will have a back button, so i could go back to my Main View.</p>
  
  <p>Is this possible in qml?
  If not i have to solve it with c++</p>