How do I customize the menu layout?

[SatansAngel]

For instance a menu reads

ITEM
STATUS
EQUIP
QUIT GAME
(etc.)

How do I let's say add another option for "EXTRA SPECIAL ITEM" (not key item) and then only have certain items appear in that?



Also, how do I customize the look and layout like below?

 

[Andar]

you need plugins for any kind of change to any menu.
There are several general menu type plugins available for use, but a lot of cases need a custom plugin specially written for a game.
I don't know how that one was done, but you might want to check Galv's plugins for that one.