Hi kvp
With the Export of Stock Central you won't be able to do this, but you can always use our Premium add-on ATUM Export Pro instead.
Among other features, with Export Pro you can export almost any kind of data of your site, in this case products.
I leave you here the documentation of the add-on where you will find useful info about how it works: https://forum.stockmanagementlabs.com/t/atum-export-pro-documentation
And the link to the demo site in case you want to try the free trial: https://www.stockmanagementlabs.com/addons/atum-export-pro/
Hope this helps,
Best Regards,
Andrea.