Is there a way to create a field that adds columns with with a target string in the field name? For the example below, add columns with "Sales_" in the header? Currently, I use a formula tool with the expression, [Sales_Jan]+[Sales_Feb]+[Sales_Mar], but this gets cumbersome as more months' sales gets added into the data. Thanks.
| Region | Sales_Jan | Sales_Feb | Sales_Mar | Sales Total |
| W | 10 | 12 | 8 | 30 |
| E | 14 | 10 | 10 | 34 |
George