Document AI setup question

Hi -

I’m looking for guidance on setting up the parser correctly.

I have created field and parent fields. The parent field has 25-30 child fields for data that repeats in a group and this data is grouped together the same way throughout the document. For for example the parent field could have 10 times the format is repeated. It is not a row of data but several rows/columns that create the parent group. After successfully mapping the child field data, I can highlight the next grouping and do I want to hit add row or add instance. Either way, when I do this it seems to not create the parent group and instead creates mapping for the child fields and so therefore the data is not grouped. I need it grouped by an ID to transfer over correctly in our system.

Any helpful ideas or tips?