No questionnaire with ProSeries.  Go through the Fed Info worksheet then start pulling up the worksheets or forms your clients return requires. 

The green WHERE DO I ENTER button on the toolbar  pretty helpful when trying to find what you need.

There is a client checklist.

I think they're looking for the "interview" type questionnaire like TurboTax or other online consumer (DIY) tax prep software has for collecting taxpayer information.