Custom Data Type in PowerBI? (Transform - Structured Column - Create Data Type)

[meagain]

Does PowerBI offer the custom data type function available via Power Query's user interface? I can't seem to find it, even though a number of articles describe this function as having been developed originally for PowerBI. 

I would hate to have to toggle back and forth between PB and PQ to build the query I need.

(See this video to see how custom data types work: https://youtu.be/5Qmp1hFjw0k) 

[parry2k]

@meagain I don't think it is possible in Power BI. I have never seen it.

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[meagain]

These M commands -- which I generated using the Excel (O365) UI -- work when pasted into PowerBI. 

If you check out the screenshot below, the filename column is associated with all of the metadata, which appears on a separate card when you click the filename.

let
Source = Folder.Files("C:\Users\XXX\Documents\Courses\SQL"),
#"Created data type" = Table.CombineColumnsToRecord(Source, "Document", {"Name", "Folder Path", "Date created", "Date modified", "Content", "Attributes"}, [DisplayNameColumn="Name", TypeName="Excel.DataType"])

in
#"Created data type"