title: How to hide a child container of a viewstack?
body: <p>I have a tabbar whose dataprovider is a viewstack and the viewstack contains a group of vbox containers. I am trying to hide one of the vboxes based on a certain condition but the tabbar still shows the corressponding tab for the hidden vbox. I set the visibilty and includeinlayout of the vbox to false but the tab still exists.</p>
  
  <p>Thanks in advance</p>