Yes, you can do that in a single sheet, just create a new Window for the sheet ... menu command Window/New Window, and then compare side by side ( menu command Windows/Compare Side By Side With ), and click the Synchronous Scrolling button ( there'll be a new toolbar appear with Side By Side controls ) to toggle synchronous scrolling on and off.
Cheers, Glenn.
Did you hear about the literalist show-jumper? He broke his nose jumping against the clock.