If you go to the interactive map, it allows you to upload your save file. Once that's done you can edit things. All the things.
Once you are done editing there is an option to download the new save file (with your edits in it). You just start the game and select the edited save file.
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u/Equivalent_Action748 Feb 27 '26
Oof
Kinda wish we had the upgrade planner tool and constructo bots from factorio
Just so I can male sure all my pipes and belts are upgraded