Does anyone have calculation verification for the live load auto-generation function in RC-PIER? Or has anyone else had problems verifying the LL output from RC-PIER?

In the output for LRFD footing design, under the Cracking/Fatigue section, there are "Srqt", "Srqb", "Sprt" and "Sprb" heading with the unit of 'inch'. I cannot find anything in the manual or help that identifies what these heading are for. Can anyone…