How do I swipe-and-drag a level?

Basically I want to swipe the game level around like one does Google Maps. Like the click-and-drag functionality, but for an entire layer simultaneously, and with boundaries.

There is a tutorial for just this kind of thing:

https://www.scirra.com/tutorials/560/sw ... th-inertia

Thank you... I didn't have any luck finding the tutorial on my own.

And I see (with a second look) that it should be able to 'invert', more or less.