building complex functions using the function icon in the dialog b
 

I believe in Excel 97 you could build a function within a function using the
function dialog box by clicking on the function icon within the dialog box,
which would then open another dialog box for that function. What happened to
this neat tool? Now to build complex functions (using 2003)I have to know
the function name and the parameters or criteria. Am I missing something?
And if not, does anyone know why the programmers took it out?