How can I view 2 sheets at the same time? Goal is to make sure the rows are the same.

I am using the PMO template provided by Smartsheets. Under Project Level, I have a Template folder that I use to create new project folders (save as new). When I make a change to the project plan in the template folder, I would like to view the project plan in the other project folders.

Right now, I would just like to be able to view the Template Project Plan against a Project Plan in another folder. I open the project plan files using ctrl-c so they are in different tabs. Is there a way to do a split screen view (horizontally) so I can both files at the same time?