What's so special about screen 83?

Tools->NES Dungeon Template is telling me:

Quote:

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This copies the contents of screen 83 of the current map.

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Why 83? What's so special about that screen? Why isn't it configurable? I notice it's in the middle of the last row of the minimap in the bottom left of zeditor.exe

Screen 83 is the dungeon template screen. Here you can set up default combos, etc. for the entire map.

Code:

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  In The Legend of Zelda, the dungeon rooms follow a standard template of four walls, each with at most one door. To ease the creation of NES-style quests,
 a 'dungeon template' can be made and applied quickly to a screen.
  The dungeon template is made in screen 0x83 of the current map.
Only the first two rows and columns of combos in layer 0 are used in the template.
  In a usable screen, choosing 'NES Dungeon Template' will let you place the template onto the current screen.
You can choose to use a certain combo to fill the 'floor' of the screen, or leave the floor blank.
  Selecting 'Apply Template to All' applies the NES Dungeon Template to every screen in the map.

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Well, that would mean the dungeon can only have at most two rooms, if each room can have at most one door. :naughty:

What do you think of making the screen number a quest rule though?