moving sections from one track to another

OK, here’s another approach:

  1. Select the “breath” part that you want to move.
  2. Press “Ctrl+B”, then “Enter” to label it
    Repeat steps 1 and 2 for each “breath” section.

IMPORTANT:
Rewind back to the start of the track (Click anywhere on the original audio track and then press the “Home” key) and add one more label (“Ctrl+B” then “Enter”).

When all of that is complete, press “Ctrl+A” to “select All”,
Then from the Edit menu: “Edit > Labeled Audio > Split Cut”. (Removes all of the labeled sections.
Track menu > New Track, or New Stereo Track (the new track must be mono/stereo to match the original track).
“Ctrl+V” to paste the cut sections into the new track.