i have looked through help and manuals and even got some advice for a similar issue here - but it still polagues me.
So i need a play all and a chapters select. i went through and set the chapter markers and set end action for each one but the play all button now executes the chapter end action - this was for both simple chapter markers and after setting up a chapter playlist.
Instead of using Chapter END-ACTIONS or Overrides, I would setup some Chapter Playlists. Then link to the Chapter Playlist when you only want a single chapter (or several chapters that you can add to a Chapter Playlist).
This should work (unless you have more than ~18 Chapter Playlists).