I have a spreadsheet that is getting very wide. My row headers are the far left row, but as I add more columns to the right, now I can't see my new columns and the Row headers on the far left at the same time. I know in Excel, you could sort of drag the border of the viewable area and create a split pane, so each could be scrolled individually, is there anything like this in numbers? How are you supposed to see your row/column headers if your data gets really tall/wide? There's got to be something I'm missing here.