Nice addition. If you write others do share! Maybe include a description for those who aren’t (yet) fluent in codespeak…
Those look really solidly built.
In the spirit, here are a couple Keyboard Maestro macros that enable horizontal scrolling in Score Edit view via keyboard commands (or any other trigger KM can use)
You can get a demo of it at keyboardmaestro.com.
Unzip these files and import them in KM.
Scroll Score Right.kmmacros.zip (1.29 KB)
Scroll Score left.kmmacros.zip (1.29 KB)