Hi,
Nothing big, and less of a request for a new feature than rather for a tiny little improvement:
Custom fields of the type 'Link' are in probably 99.9% of all cases used for external links. So, IMHO they should have the attribute target="_blank" by default. Otherwise customers are leaving our sites, and who knows if and when they come back.
I've just inserted the attribute in my administrator/components/com_hikashop/classes/field.php on line 1594 (as of HS 2.3.1), and have now one more file to babysit on next update. Others might have greater difficulties than me finding this manual tweak. However, I bet no one has a problem with such link opening in a new window/tab even if it's an internal one... much better than potential customers leaving the product page and forgetting about the browser's back button...
Or is there a specific reason why you didn't include the attribute in the first place? After all, I saw that numerous other "link-ish" fields have it, only the "real link" doesn't.
Warning: If you do it, adding it to the changelog will take you more time than doing the actual tweak in the file, hahaha. Anyway, thanks for consideration!