Move notes from the Bass clef to the Treble clef in the Score Editor

I'm using the latest macOS 27 and Logic Pro 12.4.

I recorded my right-hand playing on my Keyboard MIDI controller. All of the notes in the Score Editor are in both Treble and Bass clefs.

After making the recording, I learned about the Split setting in Logic Global Settings. I checked Split and set it to a much lower note than I played. However, when I open the Score Editor, the notes are still in both clefs.

Is there an easy way to move the Bass clef notes up to the Treble clef?