The Songs drawer shows the songs in the current book. Tap one to show it, or select several to share or change them together.
The book can be changed by tapping the arrow to the left of the book name.
Songs are grouped by the first letter of the sort title. On a long list, tap a letter heading to jump to another letter.
Tap a song to open it and close the drawer. While you are using multi-select, a tap toggles the checkbox instead.
A long press offers Start multi-select, or Select / Unselect if selection is already on. A song that belongs to a version family also offers Compare Versions and Remove from version family. A song with no other versions offers Review song.
The bottom action buttons are Share Song (the song that is open), New Song, Import Songs, and Select Songs.
During multi-select, they become Share Songs, Join versions, Delete, Cancel, and Select....