January 28, 2021 at 7:24 pm
#6266
Keymaster
Hi Andee,
If you could try dragging the original CSV file for the large dataset into the document with the smaller dataset (or, better, a copy of the document with the smaller dataset). If you have not renamed any of the original attributes, nor altered the cases, it should offer to replace the data. In this process it will create and populate the missing column.
Jonathan