The whole show travels in the link: custom sets, and any Copley Street set you have edited. Untouched Copley Street sets ride as ids, since every copy of the app ships them.
The link is a snapshot. Share again after changes.
Link too long for some apps; use Export JSON
Open this app online once on each iPad before the gig. Export and Import a
show as a file from Library → Shows.
One dim line under the ABC: the first sentence of each tune's intro, at most
three lines. The whole thing is in the ⓘ panel. Per iPad, like the text size.
Show text size
Fit grows the show-mode type until the page fills the screen, up to 1.8×,
and never shrinks it. Text size is per iPad: it is not shared and not synced.
Cloud sync
Local storage is a cache; the band code is what keeps your shows. Entering a
code that already has shows on it merges, it never replaces. Anyone holding the code can
read and change these shows.