How to get multiple UserNames in Applap

Hi,
my students have a game and they want to have 5 players enter their username and then the app will store the username to display in the next screen.
I know I can have a variable called UserName and getText, but how I can have only one text box yet the computer remember the 5 userNames?

The user can store the names in a list, then display the name of that user.