The following workaround has worked for me
I use the following approach for own created, unregistered, deleted, rejected or inappropriate TV Shows.
Kodokan (folder with the name of TV Show - can be an own created show as well)
Season (reminder: each season has his own folder!)
*xml and png file based on Firecore’s Metadata Guide 101
2. Structure - organising files
season 1-poster.png [file]
-Season 1 [folder]
once you have completed an episode, go the theTVdb and create your own show. It is sufficient to fill in the name (beware of spelling errors ) and a season.
4. Assign TV Show - organising files
After some minutes, the record is created and you can assign your episode to the newly created show by editing your episode. Its enough to assign one episode.
In some cases you have to refresh the data from the xml again by editing the episode an choosing the xml file as data source.
Move the other files into the season folders, refresh the library and Infuse will do the rest automatically- assign all other episodes and seasons.
I hope that Firecore will implement soon an xml tag to override the name of the TVShow so we can use either any entry of the TVdb to avoid unnecessary entries and reduce the work of their mods or made the step unnecessary. Special thanks to Christian1979