The Scoresheet is where you live score a match from start to end. The Ball-by-Ball section on the right shows details for all balls from the current inning, arranged from newest to oldest and separated by over.
...
(6) See current strike bowler. To change bowler, tap on the bowler's name to choose from Selected Team players.
...
(11) To Edit a Ball, tap on the “pencil” icon next to a ball in the Ballball-by-ball list.
(12) To Edit Over, tap on the “pencil” icon next to the Over heading. To insert a new ball into a custom position in an over, tap on the (+) icon next to the Over heading.
...
(17) To update the status of the match, tap on Match Status.
...