how to install omp version to my gamemode. (windows) please give me reason other tutorial ❤️ THANKS.

you're not making much sense with that question. gamemodes are usually installed on servers, not the other way around... so basically you take your gamemode and all your scripts and you move them to the new server. You can find some details on how to install everything here: https://github.com/openmultiplayer/server-beta-old