alec,
the play all-feature is very simple, you just need to jump to the first chapter of your film, so the whole film will play seamlessly.
if you need to set different chapter-marker just create them and jump from your chapter-select-menu to these chapters.
each chapter wont need to have an end-action, so the rest of the film will be played seamlessly.
if you would like to have an end-action on each chapter that would need another way of programming.
what would you like to do?
cheers
danny