Having the ability to name all the production lines and show them next to e.g. Production at the top. This would make it easier if you have various files to know which one is which. The file name could be edited to reflect the name of a save or e.g. by Tier or anything you desire. This should have a default impact on the default name of the file. The name of the save file should not have any influence on that name
As mentioned on Reddit - you can rename the file manually, but adding this to the tools would be tons of work. New tools will have similar system to this though.
Having the ability to name all the production lines and show them next to e.g. Production at the top. This would make it easier if you have various files to know which one is which. The file name could be edited to reflect the name of a save or e.g. by Tier or anything you desire. This should have a default impact on the default name of the file. The name of the save file should not have any influence on that name