The players' names can be entered in an event in one of three places:
Normally you would enter the names of the players for the session of play. However there are times when you would enter the names for the first session of play, before the session has been organised. Also there are times when you would enter the names for the outright field and copy them to the session of play.
How you organise yourself will depend on the circumstances.
How you organise your pair numbers will affect the way you capture the names of the players. See "What is the best way of assigning pair numbers in an event?" for more details.
See "entering players names" for the procedures in entering the names.