Appointment of hot keys

[Raz-Dva]

I apologize in advance. I know English bad. He wrote with the help of an interpreter. Who knows how to assign hotkeys in the game?
Is this even possible?

Nowhere I can not find the answer

Thanks in advance

[Jagdpanther]

https://www.youtube.com/watch?v=5RAkJ8l1mhY

[anatoliy_mast]

Where can I find this Copernicus' SGA Extractor ?