I'm a newbie, and I was wondering how I could insert repeats into a composition. I looked at the sample, but it didn't explain how to go about this.
NWC considers a repeat sign to be a type of bar line. Edit a bar line (one way is to highlight it and type <ctrl>e) and you'll see a "Style" box. Expand this (click on the down-arrow to the right of the box), and you'll see a list of options; the last 4 of these are various types of repeat sign.