This seems pretty cool. It's a way of mapping a bunch of buttons on an external device to do common Finale tasks, switch menus, etc.
https://www.rpmseattle.com/of_note/what ... ontroller/
It includes many, many JW Lua scripts to achieve that.
The Finale stuff is free. The external device can be a piece of Stream Deck hardware, but there's also an iOS app from the Stream Deck people you can run on your iPhone--it talks to your desktop computer over WiFi. The app rents for $3/month.
Here's a pretty-old demo video, but it gives you an idea.
https://www.youtube.com/watch?v=Rmo89_B6fb0
JetStream Finale Controller released
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