The idea is to have ALL custom shaders in one directory seen by all machines. So I can add more of them, one by one, and installed them only on one place.
Some of the machines, have main user name different, but is that the problem?
All machines have common user, but it's not the one used to install maya on all machines. Satellite is working fine with MR installed shaders, like Mia etc.
Is satellite looking on lokal mel scripts with definitions for shaders or not?
Seting Environment variables didn't really help either.
I guess it's perfect combination of all of the elements which I just can't guess at the moment.
Maybe this depends on the way shader is written itself?
I'm trying to use for example velvet shader, from http://www.digiteck3d.com/pages/sections/tools/toolsMain.html
It's fine as long as I'm not using MR satelitte...