I have been perusing the MID5 matrix for MIDE/POP, and I mostly agree with Raoul. I'll add this: The POP settings are temporary, and the MIDE settings "stick." Maybe that's all. One can get to a specific column in the table by changing either MIDE or POP, but it wold be better to experiment with POP as a try-and-see procedure, as it won't screw up your MIDE choice for a specific input. I'll confirm this later.
I would very much like to understand some of the letter symbols. Since the codes don't exceed four characters, some letters have to do multiple duty, I think. B means "blue" in one place, "bow" in another.
In many places in a color context, Y = lumenence, C = color. RGB are obvious. H and V could mean hue and value, but in many places it clearly means horizontal and vertical. U = user. B, C, and H are brightness, color, and hue, referring to sliders.
But what is the difference between OF or O = offset and S = sub-? Sub-brightness is usually the setting for a control adjusted to minimum. So SBRT is a independent pedestal for the operation of the Brightness slider. So what is UBOF? And what, for color, are the relationships among UCOF (user color offset), SCOL (sub-color saturation), SCLO (sub-color saturation offset? The charts seem to imply that UCOF is video-mode *and* picture-mode dependent, SCOL is just picture-mode dependent and SCLO is independent. This makes my head hurt, but perhaps this allows one to set up several of these parameters for perfect matching (or differences) among various inputs and picture modes *and* to tweak it so your slider is at 31 when everything seems perfect.
This really is rainy-day obsessive twiddling activity, but it would be nice, if certain equipment pieces are always hooked up the the same inputs, to approximately equalize the brightness, picture, color, and hue among them for centered user sliders.
"We all get smart slowly."