The questions related to Qualified Business Income (QBI) and the QBI deduction will show up when you are finished with the section of the return that may qualify for the QBI.
For example, if you have a Schedule C included with your return, then when you are finished with entering everything related to the Schedule C and you click 'continue', you will see the QBI questions. To go through them again, just edit the Schedule C and then click 'continue' to leave that section.
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