To transpose the sequence in the piano roll, just select all (Ctrl + A or drag around all notes), then drag the selection vertically to the pitch you want.
As for exporting the sequencer MIDI data to a DAW, what we can do is to sync the DAW and the MnF and then record the sequencer MIDI stream on the DAW. Not the same as a MIDI export/import cycle, but it gets the job done.