Custom list re-ordering is not possible at this time. I do want to add it though. In the meantime, you can only choose to save your list order based on original order, rating, release date and original title.

Too bad. Thanks for the answer.

Hi Travis, can you add that option please? It will be very helpful. For example: When a new movie in a series of movies comes out, I would like it to be in the same group of movies from the series and it is not always the same name. Thanks, Omri