Create multiple rows from columns

The unpivot-solution in the query editor would look like so:

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WCijKz0pNLvErzU1KLVLSUQrISCxOVTAEspxLi4pS80qALLfSvJTUFLikETbJWJ1oJUcnZ0OQJEi3oYEBkDQFESAhIzALJAhS6OziamJqBlVpZGAAV28E1mMAFY2NBQA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type text) meta [Serialized.Text = true]) in type table [ProjectNumber = _t, #"Phase 1" = _t, Current = _t, Funded = _t, Phase2 = _t, asdf = _t, Column2 = _t]),
    #"Promoted Headers" = Table.PromoteHeaders(Source, [PromoteAllScalars=true]),
    #"Changed Type1" = Table.TransformColumnTypes(#"Promoted Headers",{{"ProjectNumber", type text}, {"Phase 1", Int64.Type}, {"Current", Int64.Type}, {"Funded", Int64.Type}, {"Phase 2", Int64.Type}, {"Current_1", Int64.Type}, {"Funded_2", Int64.Type}}),
    #"Unpivoted Other Columns" = Table.UnpivotOtherColumns(#"Changed Type1", {"ProjectNumber"}, "Attribute", "Value"),
    #"Split Column by Delimiter" = Table.SplitColumn(#"Unpivoted Other Columns", "Attribute", Splitter.SplitTextByDelimiter(" ", QuoteStyle.Csv), {"Attribute.1", "Attribute.2"}),
    #"Extracted Text Before Delimiter" = Table.TransformColumns(#"Split Column by Delimiter", {{"Attribute.1", each Text.BeforeDelimiter(_, "_"), type text}}),
    #"Renamed Columns" = Table.RenameColumns(#"Extracted Text Before Delimiter",{{"Attribute.2", "Phase"}}),
    #"Filled Down" = Table.FillDown(#"Renamed Columns",{"Phase"}),
    #"Filtered Rows" = Table.SelectRows(#"Filled Down", each ([Attribute.1] <> "Phase")),
    #"Pivoted Column" = Table.Pivot(#"Filtered Rows", List.Distinct(#"Filtered Rows"[Attribute.1]), "Attribute.1", "Value")
in
    #"Pivoted Column"

This is following the method I've described here: https://www.thebiccountant.com/2015/08/12/how-to-pivot-multiple-measurescolumns-in-power-query/