Creating new scenarios

[Drysh]

How can I create additional scenarios? I know how to change a saved game so it will behave differently, but some things I don't know how to do, like:

1. Adding the description in the beginning and adding my scenario to the scenarios list. No idea how to do that.

2. What are the players 10 to 99 (when you use "p" in the edit mode)? Some have strange symbols for the controlled squares ("c" in edit mode).

3. When you set a different controller for a kingdom ("shift-p" in edit mode) 0 means the human player, 1 means the ai... What is 2 to 999 ? I set a few, and the army never moved.

4. What is "x" in edit mode? I know it resets the view to the player number I enter and reset the turns. What does "fixa saker nuvarande spelare" mean?

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BTW, if someone else is interested in creating new scenarios and maps, I can post what I figured out so far. I cannot make them scenarios (they are saved games), but they behave like scenarios. Some commands in edit mode(use shift-e to enter or exit edit mode):
p - set the player number. Commands below will behave as if that player did the action (creatures created belong to that kingdom, etc)
c - Control an area. Giving control to player 8 (independent) will clear the control.
m - Add a Monster (number from 0 to 368)
n - Change terrain (number from 0 to 169). Numbers from 170 to 340 are winter variations.
l - New leader (number from 0 to 117).
k - Try to auto create the borders (land to water).
g - Change the graphical variations of the terrain.
d - Delete the monster under the cursor.
f - Give an item.
shift-p - Set the controller of each kingdom.
shift-q - Set the turn when the something happens in a gold mine (horror, dragon).