Re: NOL, See this post: https://accountants.intuit.com/community/proseries-tax-discussions/discussion/what-everyone-doing-ab...

To add a PDF attachment, go to "E-file" in the top menu bar and select "Attach PDF files". You will see a drop down and can select "Other" if the form is not any of the choices listed. However, when typing in the description for your file, make sure not to use to word "Form" or "Schedule" due to IRS naming conventions.