Double click?

Thanks for the clarification request. I just figured it out. When installing an app (some apps?) you are asked to double click. There’s a bouncing tab in the upper left hand corner of the screen that says double click. What it is asking you to do, as there’s no home button on the new iPad pros, is double click the on/off button that’s next to the bouncing tab on the screen. That allowed me to download the app. And ... thanks!