Allow controls in the Expressions menu (submenus, buttons, toggles) to be shown or hidden dynamically based on one or more avatar parameters.

This capability enables the user interface to hide irrelevant options and reduce clutter by only presenting configuration controls that are meaningful for the avatar’s current state. This approach simplifies the interface by hiding controls that do not apply, for example, hiding a hat configuration when the avatar does not currently have a hat and helps reduce user confusion or accidental configuration of inactive features. Additionally, it improves the discoverability of relevant controls, ensuring that users can more easily find and interact with the options that are actually applicable to them