M Language - Add multiple custom columns in one single Step.

[Krokolv]

Hi,

I have a question to all M experts - I would to make, in one single step, multiple custom columns like this Statement :
= Table.AddColumn(#"Reordered Columns", "XXXXX", each if [XXXXXXt] = "XXXX" or "XXXX" then Value.Subtract(each [XXXX] - [XXXXXX.XXX]) else null)

Do you know a way ?
Thanks in advance for the sharing your knowledge, Marco.

 

[Krokolv]

anyone?