How to enter notes on multiple staves

How do I enter notes on multiple staves simultaneously. (i.e. alto 1 and 2, etc.)

With the input cursor active in Alto 1, Shift+down arrow will extend the cursor downward into the Alto 2 staff. You can now input into both staves simultaneously.

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Works on Mac. Does not work on Windows

Yes, it does. Please try again.

This is what I get when I try to add notes on multiple staves in windows. Works fine on the Mac

You might need to prevent whatever Windows utility that is bound to the Shift+arrow keys shortcut from opening. Unfortunately that’s going to be a setting to change somewhere in Windows, not in Dorico, and I don’t myself know where!

That’s the Windows Snipping Tool, but it’s never done that for me on Windows 10 or 11.

Thank you