Fix CF values not updated

[marc-vdm]

CF values now store new value when changed in UI.

Checklist

• Keep pull requests small so they can be easily reviewed.
• Update the documentation.
• Categorize the PR by setting a good title and adding one of the labels:
  bug, feature, ui, change, documentation, breaking, ci
  as they show up in the changelog

[Zoophobus]

That's much better, the only thing that can be worked on is the documentation, I know it's a pain but it can help with the code too. Also I think it's good to change the method names (as you have here) to be more descriptive, it adds a surprising amount of clarity