Apple pencil: select part of drawing, copy, paste into another drawing?

UPDATE:

I just spent 38 minutes on the phone with two apple support specialists to find out that to copy the selected portion, double-tap (very quick, no delay between taps!) the selection with the pencil. To paste, single-tap in the target area with a finger.

Happy to have the solution, but still incredulous at the lack of user documentation.

I can use Lasso. Then: I have been sometimes successful in bringing forth a pop-up that

provides edit commands including "Copy," but I haven't learned how to

consistently do that. Then in another drawing -- another Note, say -- I

was once successful in bringing forth a pop-up that provided a Paste

command, but I likewise don't know how to do that other than by thrashing around and hoping to get lucky.

Having selected with the Lasso tool, what exactly do I do to bring up the Copy or Paste command pop-up?

"The app uses the same user interface for drawing as the Notes app."

Isn't Apple the developer of the Notes app?

WTF? For the purposes of this discussion, yes, the app I am using is Notes. I'm sorry I mentioned another app.