I know, setting up the audibles isn't very specific, you kind of have to guess. 1-5-5 is the last set in Nickel formation, so in the audibles menu the 1-5-5 plays will be at the end. To set them up just pick Formation then Nickel and then go to the left because that will take you to the last plays in the formation and that's where the 1-5-5 plays are.