UP3017, Monitor SDK

You need to learn how to program in C++. If you do not want to, this SDK is not for you.

Once you are fluent with this requisite Dell SDK API has 2 interesting functions:

-save current CALx calibration to a 3x1024 x16bit preLUT + 3x3x16bit matrix + 3x1024x16bit postLUT

-load into CALx calibration to a 3x1024 x16bit preLUT + 3x3x16bit matrix + 3x1024x16bit postLUT

The simplest way of creating a custom calibration for the last one is a native gamut & 2.2 gamma:

-calibrate using DisplayCAL that CALx (need to be reset to factory values). Save resulting ".cal" file (grey & whitepoint calibration, 3x156x16bit entries 1D LUT)

-Create a lu x matrix x lut calibration suitable for a Dell monitor as follows:
i) preLUT with 3 equal vectors, representing decimal numbers from 0 to 1 evaluating the function f(x)= x^ (1/2.2) , that is 2.2-root of input ranging form 0 to 1, 1024 entries. Then scale result to 16bit (unsigned? I do not remember) integer.
ii) Matrix is a identity matrix, all 0 bt diagonal which is 1. This means native gamut
iii) for postLUT do the same as prelut but instead of 1/2.2 (2.2-root) use 2.2. Then retrieve ".cal" file and interpolate 256 entry calibration to 1024 entry. Then multiply each component of 3x1024 postLUT by the same position in ".cal" LUT (interpolated to 1024)

-upload prelut + matrix + postlut to monitor in some CALx using Dell SDK

One you master this you can try with emulated gamuts like AdobeRGB and sRGB with other matrix values. Take a look in DUCCS logs about these other matrices look