Hi,
You can do "two hand recording" by (1) selecting both the treble and bass clef staves (highlighting them blue) and then (2) click the "Record" button. When you're done recording, the notes will be placed on the staves not just based on whether or not they are above or below middle C, but based on how easy it is for each hand to play the given group of notes. Of course you're free to change the placement of any note(s)
but the algorithm is designed to make the piece as playable as possible for two-hand piano.
If you don't select both staves, then the notes only record into a single staff that gets added to the score (if no staff is selected) or into the selected staff only.
ttfn,
Sherry