I am working on an extension, and I'd like to add some functionality which would require the extension to update an existing expression defined in the same extension object. It would also be acceptable for the extension to create a new expression.
Use case: Imagine a "wizard" that would guide the end user through a series of friendly steps and then automatically create a complicated expression behind the scenes for them.
I know how to do this for other objects defined in definition.xml, but just not expressions. I am also able to retrieve the existing expression definition, so maybe I'm close?
Thanks in advance for your help!