I think I understand the problem. I'm assuming that you're trying to copy
the records over from the secondary data source into the main data source.
When you are doing this, what's happening is that you are only copying the
first record to your repeating table and not all the records.
I'm afraid there's no way to do this without writing some code. You will
need to write code that will cycle through each of the records and copy them
over to the main data source so that they will show up in your repeating
table.
-Bojana