Following my experience with 1DLUT modification (see https://www.avsforum.com/threads/colourspace-cms-next-generation-calibration-thread.3049142/post-62699125), it would be essential to have RGB colour accuracy when displaying manual measures.
Only as example, what in HCFR is named RGB Level in the following picture: https://www.avsforum.com/attachments/cie-png.1862385/

Sorry to say I have no idea what you are trying to suggest...
I have tried to read the post you have linked to, and unfortunately I do not understand it.
And the hcfr image means nothing to me either.



Steve

Please see the update of the post ....

About the post I have linked, Ted liked it ..... But please comment if there is something to clarify

Nope, sorry, I do not understand at all what you are trying to request...
It really makes no sense to me at all.

Steve

After some e-mail Steve has understood my intent. My idea was to use RGB % deviation as indicator for fixing 1DLUT. I agreed that there is not a true correlation between 1D and RGB % deviation, indeed only an indication for a cycle of 1DLUT modification and grey scale measurement.

Anyhow, as Bars Widget in Manual Measure (see https://www.lightillusion.com/colourspace_manual.html#manual-measure) has now automatic zooming features for RGB, you see x1, x2, x3 on the bottom right corner, adding there RGB % deviation would help figuring out the quantity of colour you tweak in manual calibration.
Now, when comparing grey scale points, due to this automatic zoom, it is difficult to correlate them when a change of zoom takes place. Having colour deviation would help.

PS: maybe better renaming this thread to Having Colour % Deviation [WIBINI]