FR: "Change to [voice]" creates new if needed

I’m constantly creating new voices, often Upstem Voice 2. I have the alias v for this, but it doesn’t work if the voice has not yet been created.

I’d love to be able to type jv to automatically convert notes to Upstem Voice 2 even if it doesn’t exist yet. Shift-V (twice) works, but it creates a downstem voice, which I don’t want.