Question about L's 1-Person Menu

[yamina-chan]

One of games I'm working on uses the 1 Person Menu found here. (The one without SDK)
It includes the ability to show a Variable that I haven't used yet, but I would like to.
Problem is: I don't know how.

Code:

#Draw Variable
    self.contents.font.color = system_color
    self.contents.draw_text(412,0,120,32,'Variable Name')
    self.contents.font.color = normal_color
    self.contents.draw_text(540,0,120,32,'Variable')
  end

That's the Codesnipet for it and as far as I can tell that's all.
I can name the Variable just fine, but I can't figgure out how to actually show a certain Variable in that spot.
Again I wish I'd have a better understanding of scripting but since that's not the case I'll hope that one of you, who is more knowledgable then I am is willing to help me.
It may not be something really importand, but it's still d tad annoying to know that the possibility is there and you're just unable to figgure it out.
Thanks in advance.