What problem does this address?
Currently, Feedzy overwrites the values of custom fields during import, which does not allow users to maintain existing data when importing new feeds.
What is your proposed solution?
Implement a feature that allows users to append new values to existing custom fields instead of overwriting them.
Feature Summary
Users want the option to append information, like source names or URLs, to existing custom fields without losing pre-existing data.
Reported by : https://secure.helpscout.net/conversation/3134830329/475903