Okay, I have the same question and it isn't in the manual, the help document does not even mention the 'scan device for movies' option...
I have external hdd's with movie files, in this format:
movie.file.mkv <-- movie
movie.file.nfo <-- text file with information and imdb link
movie.file.srt <-- subtitle file
movie.file.jpg <-- cover
All my 40+ externals are formatted this way.
In order to get 99% automation, I need AMM to add both the filename and the accompanying imdb-link. If AMM can do that, I can have it add and download all online db-info in one automated go in the background which would save me a tremendous amount of time.
So how do I link the filename with the imdb link upon scanning a device?
At this moment I first use the scan device option to import, then use eXtreme Movie Manager in trial mode to do the same and get the linked information (EMM reads .nfo files and imports information from it) and export that to a csv file which I then copy the text from to notepad and then copy paste the imdb links into the movie cards (sort with 'added date' and use the thumbnail view so you can see if there is a picture or not). However, EMM has a 50 movie limit so I have to do 50 at a time (after which I move those 50 files into a temp folder, EMM starts with scanning the root so I can move files to a temp folder then scan the rest, until I have them all). After doing 100-200 moviecards, I use the tools -> batch update movie details. 150 movies takes about 55-60 minutes.
There must be an easier way
I am open for suggestions
If AMM could read the accompanying .txt file for imdb links, it would automate the process for 99%!
Oh, in case you ask: EMM does not support .mkv files so it does not read file information. If it had that support I would not be here...