TWO SHOWS ON ONE DAY: when a date has two shows (a matinee and an evening, an in-store and a headline), the day page shows 2 SHOWS TODAY with a button for each. Tap one and the whole page follows it: the title and city at the top, the show type and configuration (Full band, Trio, Solo...), and the schedule.
WHOSE LINE IS IT: every schedule line belongs to one show unless you share it. Lines that were on the day before the second show was added stay with the first show. A line you add while a show is picked belongs to that show.
SHARE A LINE WITH BOTH: in Edit, open the line. On a computer, tap its small chip (it reads the venue's name followed by *only*) to switch it to Both shows. On a phone, the line screen has the same two choices. A shared line (a lobby call for the whole bus) shows on every show that day. Tap again to keep it on one show.
CONFIGURATION: each show has its own. Setting Solo on one show leaves the other alone.