Thanks, that's a great clue --
setActiveSelection. I need to
position the column with cell value TODAY in the middle of the screen (this is a wide sheet with 50+ columns). It looks like
setActiveSelection will scroll right to display the cell (try "AH1" instead of "C1") to the right visible edge of the screen. I can do some math to display a column further to the right and that should put TODAY close to the middle.