title: KDE: hide / show active application windows?
body: <p>I am looking at ideas to "cache" commercial/proprietary linux desktop applications running on KDE -- possibly by letting them startup normally, but hiding the GUI completely until required.</p>
  
  <p>Is there a way to do this in Kde (specifically Kubuntu 16)? to simply toggle visibility of running GUI/Qt applications?</p>
  
  <p>cheers,
  Jorx</p>