Richard, I had received a spreadsheet that already had 10 columns all with pulldowns. I then inserted additional columns and populated those with data, but they did not have a pulldown...Based on your reply, I found "Filter" under the "Data" heading in the top textual menu. I "unchecked" it and then "rechecked" it. It then made the existing columns and the ones I added all pulldowns! Is it really this stupidly simple? How did it know to do this? The spreadsheet that I had added to also has a a group of cells above the data that summarizes some of the data, but the Filter function knew now to try and deal with this...Was that by some fortunate mistake or mouse placement on my part or is it naturally this smart?