'Explode' music from one stave to two staves (G -> GF)

I am importing an XML file into Dorico, and the notes all come into a single treble clef stave. This is okay, but I would like to split this music across a piano roll (notes at and above middle C onto the treble clef, notes below middle C onto the bass clef).

Is there a way to do this?

My guess is to select all those notes destined for the bass clef, then (assuming you have an empty bass clef ready), select alt/option M to move them to the clef below.

Have a look at this

RobF offers the easiest way I can figure out how to do it. It is very, very time consuming. We really need a “renotate” function like a certain other notation program offers.

I have had some luck with exporting the offending passage as midi then importing it back in. It usually splits okay.

If one’s music is simple enough, one could also use the Copy/Paste Special-Explode function.

If this is indeed an XML file, then the original notes will all have been on a treble stave! I would go back to the source and correct it there…

Thanks Janus. Unfortunately the XML file is being output by OpenMusic and so I don’t have the ability to edit it there. Option+M for the win!