Is there a simple method in ModelBuilder to populate/field calculate several different fields from other different fields all resided in a same feature class. For example, I would like to field calculate from field call F1 to F1A, from F2 to F2A, from F3 to F3A and so on so forth. All fields format are exactly identical, exception to the name of the fields. From ModelBuilder I use the 'Calculate Field', unfortunately, there are over 200 fields for this feature class, and using Calculate Field option for each field can take forever to setup. Is/are there any simple options from ModelBuilder to create for this type of repetitive task? Attached if the long method of Calculate Field. Thank you in advance.