transposing shortcut?

Is there a shortcut for transposing a batch of notes.

Example: violin and cello are playing the same notes but at a distance of four octaves. I write the music in the violin, cut and paste it into the cello and then need to transpose it all down to the cello’s correct octave. I would assume I could draw a box around the notes I want transposed, but then what?

ctrl-alt-down arrow

There appears to be no keyboard shortcut for opening the Transpose dialog (on Mac at least). Searching for “transpose” in Dorico Help brings up zero results. I posted another topic about this here: