is there a way to add a calculation to Configurable List Widget

I'd like the system to calculate the age of a person in the list based on the date of birth they entered

We currently do not have any means to calculate values with the Configurable List widget - neither to perform calculations inside Configurable List, nor to use values entered within the Configurable List widget in our form calculations.

Form calculations can only be performed with regular form fields, and with some of our widgets. You can perform calculations on a form by following this guide:

https://www.jotform.com/help/259-How-to-perform-calculation-in-the-form