[Feature Request] Disable Default Separate Game File Saves for Multiplayer Windows

[Adnan12349]

Could you please consider adding an option to disable the automatic creation of separate save game files for each player in multiplayer mode?
This would be so helpful for those who want to organize players game data into separate folders.
Additionally, it would also be great if launched instances from different paths could automatically connect to the first instance for multiplayer without needing to manually open a new multiplayer window each time.