How to use GenAddRecordForm and update the child record's multiple fields using data from the parent record

I can help you with this but before I give you what you asked for let's make sure it's actually what you need. Typically when you have a child record and you want to populate fields on the trail record from the parent, you simply edit the relationship and add look up fields.

Are you familiar with look up fields on relationships, maybe that's all you need.

------------------------------
Mark Shnier (YQC)
mark.shnier@gmail.com
------------------------------