I notice that ProSeries Professional has Form 5471 in the program, but not Schedules M and O.  Is it possible to get these schedules installed or does the program just not support them?

If the program doesn't support Form 5471 Schedules M or O, does this mean I need to file everything in the mail (getting Schedules M and O from the IRS website), or can I do Schedules M and O on the IRS website and then attach as PDFs to the return, then file electronically?