Improve two special tools

These tools deserve some attention in my opinion:
Bildschirmfoto 2021-11-29 um
If a camera reports distance and FL values, the tools are disabled as shown above - and all is well.

If a camera does NOT report these values or reports something that DPL does not understand, the tools come to life as shown below:
Bildschirmfoto 2021-11-29 um

Manually setting the values improves a few optical corrections (e.g. distortion) that are otherwise plain wrong. I therefore propose that

  1. the two tools be fused into one called “Manual Override” (or whatever)
  2. status of the tools be visible, even if the tools are collapsed by adding an icon that activates if manual corrections are necessary, possibly using the usual on/off toggle.