Thank you for help greatly! Your point that the only way to group objects by a value is through some commonality makes perfect sense.
In the second image above you mentioned that the total unique values were brought down from 24 to 6 after rounding. How (by which node) did you round them? and what is the input of node “List.UniqueItems” in the second images?
If accuracy doesn’t matter that much, your approach is very successful. Next step, however, is to assign the 6 different panel types to each sorted color range. Each panel type is located to the specific location per color range (here it is 6). I suspect that it may be impossible to do that in this model because it is done by “Display.ByGeometeryColor” node so the actual faces (panels) are not divided physically. I am wondering what your opinion and suggestion are…
Thank you so much for precious advice in advance.