Business & farm

How can you navigate back to the data entry screens where you enter the section 179 deduction and choose to use it or not?  I entered data there knowing I would need to go back and re-visit it.  I've mostly done the taxes, but cannot get back to those screens.  Please help.  I'm using Turbo Tax Home & Business.  I've searched for "section 179" in topics and it provides a link to take me there, but all it does it take me to the business expenses page.