If I have a cell that is a Related Row data type, I would like to be able to start typing, and spreadsheet.com to start auto-suggest options to pick from as I type. Right now when I click on the cell which expands a dialog box, I can search the column for the right value. But why not save me the click, and allow me to search right into the cell?
I agree, this is a good feature - we have internally considered this. For some reason I cannot recollect it did not make it beyond the design phase. We may consider it.