Several times, I’ve discovered episode files that are are mislabeled out of order in my library. Currently, fixing that involves logging into the server and renaming those episode files via the native file manager. Instead I propose that this could be done via the Sonarr web interface.
A) Selecting two episodes and executing a swap action, or
B) Selecting one or more episodes and using the ‘choose series, season, and episode’ interface that is already used when manually importing files, or
C) both of the above.
In any case, have Sonarr handle the renaming of episode files and pinging the media server to update its records.