Hi,
While adding "custom field" or "related products" or "related categories" to child products, there is a checkbox show off at the top:
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(this checkbox shows off only if that particular product is "child product")
If you checked this checkbox, your changes will be saved to parent directly and all to the child products. Which has no difference than making changes to "parent product".
So basically you have no flexibility to define individual custom fields for individual child products, which is sucks! (i know) but this is what it is. Like always we do, we hope VM Developer come up with a solution about it, because only VM Developer can touch to VM Backend. Virtuemart Template shows what they are given.
The topic is closed for forum clearance.
Regards,
Forum Support.