Thank you for direction, actually “git clone” method posted by you 
there are tons of different tutorials and all of them different with different result, so hard for a noob like me
Eventually I succeeded running server and client, but not succeeded with sketches: GPIO pins did work I could turn LED from it, but couldn’t communicate with virtual pins
When edited file main.cpp and restart client nothing happened like it was ignoring this file, default lines were to show input of virtual pin 1 (V1), but when I changed this to V0 it still showed V1 input in console, did search file system for another main.cpp but was not found, so where it taking sketch from if not main.cpp?