Missing histogram on tone curve 2

RT 5.4

I have the histogram inside tone curve1, but not in tone curve 2. I use tone curve 2 for the shadows and it would be very useful to have the histogram on tone curve 2.

Is this a bug, a feature or am I missing something?

Thanks

Syv

Feature request for curve background histograms · Issue #3018 · Beep6581/RawTherapee · GitHub

Thanks