This repository contains modified Russian (Cyrilic) Keyboard Layout BG64 for OSX.
The only difference from the default layout is the position of the letter Ё. It's locaded on ~ key, as it's common for standard PC keyboard layout.
Copy files to
/Library/Keyboard Layouts
After that go to System Preferences -> Keyboard -> Input Sources
Press +, select Others and Русская BG46
Credit goes to macdays.ru