All questions regarding mapmaking for Heroes of Might and Magic 3: The Shadow of Death.

1 Hello, dear forum members. I downloaded the "ArenaKonwentowa" map. This map contains a "Pandora's box" which holds an army set of a specific Castle. I opened h3maped and selected the box, but it is empty—meaning nothing is specified regarding this (I am attaching screenshots below). For those who have encountered this, could you please advise where this data is stored in the map? The game and editor version is SOD.

2 Could you please advise how to edit the Crypt, Naga Bank, Dwarf Stronghold, Dragon Utopia, etc.?

3 Please tell me, after a template has generated a map, can it be retrieved from somewhere?

Thank you for any help.
Providing links to screenshots (Dropbox):
Screenshot from game:

http://www.dropbox.com/s/dx46hhrkhzabps9/FromGamePandoraOpen.JPG?dl=0

Screenshot from h3maped

http://www.dropbox.com/s/czmp3vrvnojo29h/from%20h3maped.JPG?dl=0