mod.io only provide backend servers and API technology for game developers, so we don't actually develop the games, mods, or the in-game mod menus.
Your best bet is to reach out to SnowRunner's developers directly, you can contact them by visiting https://support.saber.games/hc/en-us/categories/6056441571345-SnowRunner
Alternatively, they also have a Discord server you can join here:
https://discord.com/invite/snowrunner