That does not help me at all.
It appears that you are importing using WPAI from a single column for each field in its own column that represents one sub field in the repeater. The you are using these values to update the one row of the repeater that matches the values in the import?
What about the other rows in the repeater? How to you indicate in the import the other rows? How to you indicate in the import what should be removed?
Somehow you need to compare what is imported against what already exists in the repeater. This means that you still need to import the entire repeater and not just a single value.
