Key Editor not visible

I have recently installed Dorico Pro 5.1 (Windows version) and have been following the introduction in First Steps. I am now at the chapter on Playback and have openned that window noting that there is no Key Editor. What have i missed?

To show the Key Editor, open the lower zone: the key command for this is Ctrl+8. Once the lower zone is open, it will probably be showing the Properties panel, but you can switch to the Key Editor, by clicking this button:

CleanShot 2024-09-22 at 16.49.28@2x


Enclose a copy of the Play window - found the icon and now everything is as it should be. Thank you for your input.

John