when there are repeat barlines in a piece and there is a da capo at the end, how do you get nwc to repeat the repeat?
In "classical" (broad meaning) music, you don't repeat the repeats, as you say, after a Da Capo. So NWC ignores the master repeat bar lines in this situation. You can replace them by local repeats, but then you won't be able to have special endings.
BTW, after a Da Capo or Dal Segno, NWC only plays the Default special ending (last checkbox).
HTH.
Sorry to intrude here : Yves what have you done of the French translation of the user manual? Answer in the relevant part on "French Version is one available?" https://forum.noteworthycomposer.com/?topic=2932