It depends on what the key of the song is that you have specified in the txt file (otherwise MobileSheets will rely on the setting under Settings->Text File Settings->Detect Key By to figure out what the key of the song is), and whether you have selected the "Sharp" or "Flat" button to control how the transposing is applied. B# and C are the same so I don't really know why that matters. I'll need more of an explanation for that one. Is there a reason you are transposing in the editor versus just transposing the song through the overlay?
Mike
Mike