KF: How to use Methods?

[nxnoob]

Hello,

my Name is Christian and I'm NX beginner. This is my first post here, hopefully you can help me a little bit.

At the moment I'm trying to get into Knowledge Fusion but still don't understand how to use methods.

For Example:
I've got a part-File with an internal spreadsheet. If I instantiate the class "ug_spreadsheet" I get a lot of different methods under its attribute node, e.g. the Method "ask_value" with followong description:

#+
Return a number, string or formula depending on the contents of the cell
row : Row index of the cell
column : Column index of the cell
sheet_no : sheet index of the cell (current worksheet, if nothing
is specified)
#-

(Integer $row;
Integer $column;
Integer ($sheet_no; 0))
@{
ug_spreadsheet_askValue(%%spreadsheet_port:;
$row;
$column;
$sheet_no);
};


How and where can I use this method?

What is the spreadsheet_port and where do I get this information?

Thank You and Greetings,
Christian