Is there a way to create a new Input axis when an Asset Store asset is installed?

I’m working on a camera script with the intent of offering it in the Asset Store. It requires a custom axis set up in the Input settings. Is it possible to do this automatically when the asset is installed from the store?

Been working on CustomInput for quite a while. As far as I can tell there’s no way to read or write anything in the Input Manager from code.

That is unfortunate. Even if there were, I would need some sort of hook that runs when the asset is downloaded from the store, or when the asset is imported into the project - is that sort of hook even available?