Layout question

Hi,

I am producing a layout file for the Institute of physics article class.
This class includes latex commands that have two arguments. For example

 \paper[short name]{longgggggggg name}

How do I indicate this in the layout file? So far I have

Style Title
  Margin                Dynamic
  LatexType             Command
  InTitle               1
  LatexName             paper
  LabelType             Static
  LabelString           "Title: "
End

Cheers,

Andrew

.          *--------------------------------------------------*
            Andrew Horsfield             
a.horsfield-hclig2XLE9Zaa/9Udqfwiw@xxxxxxxxxxxxxxxx
                  Department of Physics and Astronomy,
                       University College London,
              Gower Street, London WC1E 6BT, United Kingdom
            Phone:+44-(0)20-7679-7701  FAX:+44-(0)20-7679-1360
           *--------------------------------------------------*