title: How to do an action when unchecking a checkbox?
body: <p>Well basically I have 3 check boxes. Each of them has a boolean which gets turned to true when a button is clicked and the box is checked.</p>
  
  <p>However is it possible to do an action, when unchecking a check box without having to hit another button to trigger an event first.</p>
  
  <p>so as example:
      I select check box 1 &amp; 2. =>
      I hit start button -> boolean for check box 1 &amp; 2 gets set to true. =>
      I uncheck check box 2 -> trigger event</p>