Get your taxes done using TurboTax

That's what I thought but I can't figure out how to get to a Form 4797 screen because the assets were never entered into the depreciation section of the software since I wrote them off.  When I search for forms in the "Open Forms" I get a form that I cannot add data to.  How do I get to an input screen to enter the data?  What are the steps I need to use?