[MOD] A pointer on moding the Main Menu. Please Help! :)

[tuxu]

Hi all!
I've been wasting the last few weeks trying to figure out on my own where these things are scripted at with nothing to show for it.
Where may I find the vanilla options like "Wait at the end of a turn" and modded ones like "Automated workers will not construct forts"?

Edit:
I thought I should add what I already know - so...

I know that CIV4GameText_Option_Player.xml feeds the text lines into CIV4PlayerOptionInfos.xml Description line.
my problem is here -

  <PlayerOptionInfo>
   <Type>PLAYEROPTION_MODDER_1</Type>
   <Description>TXT_KEY_PLAYER_OPTION_NO_FORTS</Description>
   <Help>TXT_KEY_PLAYER_OPTION_NO_FORTS_HELP</Help>
   <bDefault>0</bDefault>
  </PlayerOptionInfo>

Where do I find that reference? PLAYEROPTION_MODDER_1
I want to refer other mods to it, what should I do?


I'd appreciate it if anyone could point me to a folder, file and a line.

Thanks!