Something good.  However what to do when you want to make changes, once you made this divisions, in an earlier episode.  All new added crew and cast info can't be put anymore in a earlier made division and are only put on the end.  Can it be helped?

You are partly right.  You can replace a name / actor by another, you can't create a new position in an earlier created episode.  Can I add an actor in an earlier episode, only the arrow replace seem to work.
Else there is only "Add" to use.  I can highlight left and right side, but the actor is always put on the absolute end of the line.  The problem is when you want to do it right this way and you forget a name, you'll have to start all over again.  Any thoughts???