Learn about Copy & Paste for working with loops and layers in Patterning 3.

In Patterning 3, you can easily copy and paste loops and layers.  

Press the ALT button to reveal the COPY button on the top of the screen.  Tap COPY to copy the current loop, and PASTE to paste into the current loop. 

If you are on the layers screen, copy and paste works for the current layer (e.g. coarse tune, pan, etc) instead!