Hi Greg! Thanks for your request.
Actually yes, earlier this week our software development team added the Preferred Manufacturer field to the BOM export tool. You should see that deployed to the next version of Cetec ERP (v. 3.6) coming this summer 2020! (it’s possible you could see it in your “beta” environment much sooner than that).
Thanks for bringing this to our attention, glad we were able to help you with this request.
Thanks!