i Gig Book

As far as I can see the Score Navigation mode (to manage repeats, ds al coda, etc) is only available in set list mode
Am I missing something?
Surely for tunes where it is needed, it is needed whenever it is played

Using iGigBook on Android

Yes, it's only available when viewing music from a set because you could have a scenario where you have the same song in a set or a different set where the arrangement is different. Additionally, the arrangement itself could be a "one of" and the music doesn't have notation for repeats, DS, DC, etc. This is often done in musical theater. Set lists exist because it's a more "formalized" situation as opposed to "ad-hoc" selection of a song in the moment.

Seems strange to me
I could understand if you allowed an override in the set list, but why block it in other modes?