Does anyone know how to invert selected track automation?

I’ve researched and cannot find how to invert selected track automation. I cannot find a function to ‘invert’ in Project Logical Editor, nor have I found a tutorial on how to invert track automation.
I have separately requested ‘invert’ as a feature request…
Has anyone achieved this by any chance?
I am using Cubase Pro 11.
Any advice hugely appreciated!