Introduction of a parameterless command in a layout

[Jean-Pierre.Chretien]

Hello,

I did not manage to introduce a latex command without
parameters in a layout, to have in the style manu
instead of ERT.
Example:
Style  Foo
  LatexName    foo
   ...
End

results in 
\foo{}
in the exported .tex file.
I'd like to have
\foo
without the {}

lyx-1.0.4, Sun Solaris 2.6

Regards

-- 
Jean-Pierre