esapolymat script as a function

HI, i dont know how to use a script as a function in Esa polymath device.
I have to read and write variables from an other script so I need to call the function script. And use the variables.
Can anyone help me?

http://www.ely.pg.gda.pl/~lkuczkowski/MD/E52/POLYMATH%20SmartClick%20-%20User%20Manual%20-%20rev.%201.0.pdf

Chapter 8 - Scripts
In the above manual seems clear from defining variables to reading files.

Regards,

Manual

I had read the manual, but It doesn't solve my problem.
They don't spcify how to call a variable ln a script that I set like a function, from other script where I want to write in the function variable.

"Using the General mask you can set the identifying properties
of the Script. The Name is a unique attribute within the project
that is, other different Scripts with the same name cannot
exist. The Comment is a Unicode string and is visible only
within SmartClick. It is also necessary to define whether the
Script must return a value to the application and what type of
value this must be (Number, String or Variant). Use the table
at the bottom of the mask to specify the input parameters to
the function with their related Names, Types (Number, String
or Variant) and Comments (visible only in SmartClick)."

Regards,

Thank you for your time, i had already made this steps. But my problem comes now when from an other script i want to call to this other where i have set de variables and write them.