Your last 2 videos: Nice master class in editing in general and usage of the tone equalizer specifically.
I agree with your comments about the amount of info shown with the improved brush functionality, it gets in the way. It is a really nice enhancement, though, isn’t it. Nice job @Pascal_Obry!
Thank you @s7habo - phenomenal work!
I’ve struggled for years with mask moving and it is only today that I learned I can control click on the arrow and prevent the complete mask from moving… ah how much I have been missing…
Question 1- when I am in tone equalizer - the mouse wheel is used to increase / decrease the exposure. More often than not I find I have to zoom in / out the picture. My cumbersome solution is to close tone equalizer then zoom in / out then open tone equalizer again or use alt+1,2,3 and the navigation window.
Is there a shortcut that I can use to switch between mouse wheel being used for exposure adjustment in tone equalizer and zoom in / out for the complete image?
Question 2 - In the previous video - you are using defuse or sharpening module with bloom and multiply to improve sub contrast. I tried to emulate… Are you targeting specifically the darker areas that need improvement? Or maybe I am misunderstanding a bit when to use the approach or simply I am not grasping the ideal quite well.
Question 3 - I was watching Joanna Kustra’s video Secrets of color-grading in photography - YouTube on color grading and she points to https://paletton.com/ for finding pleasing color combinations. And you have touched a few times on color grading in your videos. I am also trying to use the vectorscope for understanding the colro more.
What I am struggling with is identifying more precisely the underlying hues. One option that I am using is to apply lowpas - radius 10, contrast 0, brightness 0, saturation 1. Can you please advise if you know a better option how can I approach this?
Do you have a mouse with a clickable scroll wheel?? Press once for 100 and press again 200% and again back to fit to screen…or you can program some key combination
Thank you - this helps to zoom in particular area.
Add a parametric mask, go to the hue channel, hover your mouse over the mask’s slider (the hue one), and press c.
Thank you @vbs . I am glad that you find my videos useful.
I have the same problem and don’t know a solution for it.
Maybe GUI developers can help here @elstoc? , @Nilvus?
The idea is to increase soft contrast while making the texture smoother, similar to the Orton effect but with more control:
Original:
First, contrast with exposure module and multiply blend mode for comparison:
You see how the contrast is very nice but harsh.
And now diffusion and sharpen module with “bloom” preset and multiply blend mode. First higher radius span…
…and lower radius span:
I don’t know what you want to do with this, but for that you have a view at the parametric mask for hue. if you go over the hue slider with the mouse and press “c” key:
Sorry, I saw too late that you have already answered his third question. 
No worries! In Joanna Kustra’s video, she shows how she uses this technique to aid her when color grading.
I thought that a lab tone curve with flat L curve at 50% worked too but no real advantage over the other solution…It is quite similar to low pass as described…
Off
ON
Interesting…using the channel method every thing shows “coloured” hue patch even the grey patches which can be say 37 38 38 will show a blue green hue … and black areas 1,1,1 show as blue…
Quite different… I guess there might be use cases for both
Interesting… Your way seems more useful than ours. Kustra’s technique is to create a middle grey layer and switch the blend mode to luminosity. That can also be done with the colorize module and switching the blend mode. She then samples those colors, brings them over to paletton and plays around with the various color harmonies to see which way she wants to push the hues of her pictures.
For me the same key is assigned by default, however once I press it while a drawn mask is selected it just locks the mouse but how does it me allow to pan and zoom when all mouse inputs are ignored (incl. mouse wheel). Am I doing something wrong? 
I also just noticed that panning stopped working while zoomed in at a drawn mask, independendly of the shortcut. I remember some time ago this has been working 
I’m using the latest & greatest master (3.9.0+1072~g3f206c88a).
You can use the navigation box in the image preview for panning and clicking your scroll wheel for zooming…if the a key is not working at the moment
Thanks, I badly needed this feature 
Thank you @priort I think you are making a very valid point here.
Starting with artificial file as a sample - original below
Then - low pass approach
Then Lab curve
Then - parametric mask for hue with c pressed
I don’t know why they are so different. But based on what I am seeing on my monitor
Thank you all for the advice!
The goal was to understand a bit the underlying hues. Kustra’s technique aims to have a better visualization so harmonies can be achieved and an interesting point that she makes is when a color contributing to the harmony is part of the deep shadows. If I was able to understand correctly - such colors - even when not extremely apparent - they do contribute to the perception (by the viewer) in the formed harmonies.
As @s7habo pointed in the videos how to influence color shifts - this all gives a lot of opportunities for adjustments.
Keep in mind that you cannot assign a hue to pure white and black. That could explain some of the differences you see. Then, you can’t just display a hue, you need values for saturation and value/lightness. So either you use fixed values for those (which is what happens in the parametric mask view, I guess) or you have to get them from “somewhere”. Parametric mask seems quite decent on the hue values, with saturation and value at about 0.5?
