Not sure what you mean by a "main screen" ---- if you are referring to using Forms mode, that is a feature of the CD/download software. Online software does not have Forms mode. The way to enter your information is to go through the interview screens and answer the questions.
Do you want to switch to the CD/download?
https://ttlc.intuit.com/community/choosing-a-product/help/how-do-i-switch-from-turbotax-online-to-th...
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