Hi @Sheryl-DeMott, Copy/Paste? Can you upload an example to a file sharing site (like Google drive or Dropbox).
When I need to extend a sustained note (at the end of a song for instance), I typically use
"Process> Time> 'elastique Timestretch". Of course this does not work well if there are drums or other percussive instruments at the stretch point. Excessive stretching will add audible artifacts as well.