Dear Virtuemart-Team
What's about the idea, to implement an option, perhaphs as a plugin, to add a custom sorty by or search by field. So then the admin-user can set his value without changeing (hacking) the core and ist still flexible to use all the others standart- sort-by, search-by options.
I don't know it would be helpfull for others but for me it would be great ;)
It would be nice to know what you're thinking about.
Best Regards