In TurboTax, or any other do-it-yourself tax software, information is entered through the question-and-answer interview. If you don't want to use the interview, you can use Free File Fillable Forms on the IRS web site, or you can download the blank forms and instructions from the IRS web site and fill out the forms by hand.
If you use the desktop TurboTax software, not TurboTax online, you can switch to forms mode, which allows you to make entries directly on the forms. But you will find that many of the entries on forms like Schedule F and Schedule C cannot be made directly on the form. The entries come from supporting forms or worksheets. Entering all of your information in forms mode is complicated, time-consuming, and error-prone.