Form and official instructions can be accessed there: https://www.uscis.gov/i-131.
This form is used to request for travel documents which may be useful is the petitioner is planning to use his EAD and leave the country while the permanent resident petition is pending.
As a H-1B with for a concurrent filling of a NIW petition, here are some questions which might be problematic:
Part 1 - Question 6: Class of Admission: H1B
Part 2 - Question 1: Application Type: 1.d. (Applying for Advance Parole Document to allow me to return to the U.S. after temporary foreign travel).
Part 3 - Question 1: Date of Intended Departure: if unknown, "unknown" or "to be decided" might be acceptable answers.
Don't forget to sign...