Shutting down apps

[WPCentral Question]

Lumia 928 and WP 8.0
Occasionally, I stumble into a screen that shows side-scrolling images of all the running apps with an option to shut them down. How do I consciously reach that screen? What app or setting? Thanks

 

[jonathanrn]

You held the back button down.

 

[Brokn Wing]

Lumia 928 and WP 8.0
Occasionally, I stumble into a screen that shows side-scrolling images of all the running apps with an option to shut them down. How do I consciously reach that screen? What app or setting? Thanks

Press and hold the "Back" key and here you are on the same screen