Unfortunately, we don't offer custom development services for EZ Exporter or any of our apps.

All our apps are designed to be self-service and we're simply not staffed to be able to offer custom feature development.

We do consider feature requests, however, if they will also benefit our other users (we're very careful with adding features as too many features could make the app bloated, harder to use, and potentially buggy).

If your requirements are very customized for your business, you might want to check out the Shopify Experts site, where you can hire agencies or freelancers to build a custom solution for you.