Converting PQ Step intoa function with Column name as input.

[Radoslaw Poprawski]

Hi all:
I have the below Code and I wonder how can I transform it into a function where

= List.Sum( Table.SelectRows(Excel.CurrentWorkbook()
            {[Name = "T_Multiplier"]}[Content], 
            (OT) => [#"Reporting code"] = OT[#"Reporting code"] )[#"Reporting Multiplier Value"]) )

[#"Reporting code"] - is the internal column name from the Table T_Multiplier
OT[#"Reporting code"] is the outside column of the same name.

 

[Radoslaw Poprawski]

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