Some fixtures have non standard ways for some channels. I would love to have a way to invert them in the Edit Fixtures tab, like the way you can invert Pan / Tilt in the fixture window.
Example:
Ayrton Nando wash, zoom @ 100 is beam small, Zoom @ 0 is beam wide.
Some Chauvet spots with Gobo rotation ( 0 is static, 1 is 1000 RPM, 99 is 1 RPM ).