When you have locally modified originals in your session directory, which are not checked out for edit (no exclusive lock) and you open them from ECTR you get a warning:
You can also navigate to your Working Directory in the Desktop Window, to identify your local modified file:
If you want to overwrite the local modified original with the latest original from SAP you can add a menu entry like this:
You need to change the <ECTR>\customize\config\menu_macros.txt and add the entry "fnc.doc.open.fast.revert.view":
If required, please also adjust the dictionary files.