MonochromePlus CF
Author: Chris Fryer - https://www.chrisfryer.co.uk/blog

Monochome workflows are a great standard for doing channel difference based operations (e.g. removing tracking markers) Monochrome Plus provides a couple of extra features to make the workflow faster.
Features:
- Weight - controls each channel's contribution to the final monochromatic channel
- Source/Target - allows the user to divide/multiply the monochromatic channel
- Use weighted target as source - replaces the source values with a weighted multiply to allow colour matching with one colour pick