The standard 1-15 rugby numbering isn't cosmetic — it tells everyone reading the team sheet exactly who scrums, who tackles wide and who finishes, so this editor keeps that numbering intact instead of just listing fifteen names.
The lineup maker supports the standard 1-15 lineup, an attacking-width backline shape, a defensive drift line, a lineout launch shape and a scrum-ready shape, so you can represent the starting fifteen for any team or system of play.