You can merge fields of similar data into a single multiple-occurring field in the
Normalizer
view. You might need to merge fields when you drag ports from another object to create a Normalizer transformation in a mapping.
A source row might contain multiple fields that contain different types of salary data, such as Base_Salary, Bonus_Pay, and Sales_Commissions. You can merge the fields to create one Salary field that occurs three times.
The following image shows an employee row with three types of salary selected in the Normalizer view:
You can merge the three types of salary data into a Salary field that occurs three times.