Good time of day!

I want to use texture that I created with Substance PBR 200+ materials in texturing of another object. But I want it to be "on-fly" so that I can  view what I change with Substance Material directly on another object's material.  I have a sense that Python API can help me, but I am beginner with IC's Python. I've checked tutorials, the list has tons of info but at present moment I found only this simple lesson with programming of texture animation: https://wiki.reallusion.com/IC_Python_API:Animated_Material
I will try to repeat it, but I guess that a problem exists with capturing substance texture, because before baking  all substance textures may be locked for any access as any of sliders are disabled... So may be somebody has experience with texture references in Python API and share it with me? In ideal I would like get a script and a button that activate that script. Script must relocate chosen texture to another object, but it must be another channel. For example, I would like get Normal map from Substance Material and then Desaturate it by script and copy it to Roughness channel of another object's material. Also I found this tutorial about linking textures. It is OK but all channels are linking by type: Diffuse to Diffuse, or AO to AO...This is not what I need: https://courses.reallusion.com/home/iclone/material-and-texture?v=iclone-7-21-tutorial-linking-and-unlinking-for-object-textures