Unfold a path to lines

Hi , Ju7438 

For your need , i can be realized in Power Query Editor.

You can put this M code in "Advanced Editor" to refer to :

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WctR30ndWitUBsgz1HY30HY31HU2UYmMB", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Context = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Context", type text}}),
    #"Added Custom" = Table.AddColumn(#"Changed Type", "Custom", (x)=>Text.Split(x[Context],"/")       ),
    #"Added Custom1" = Table.AddColumn(#"Added Custom", "Custom2", (x)=>    
 Table.AddColumn(Table.FromColumns({{0..List.Count(x[Custom])-1}}),"test",(y)=>   Text.Combine(List.Range(x[Custom],0,y[Column1]),"/") )[test]      
  ),
    Custom1 = Table.FromColumns({List.Combine(#"Added Custom1"[Custom]) ,  List.Combine(#"Added Custom1"[Custom2])})
in
    Custom1

Then we can meet your need:

Thank you for your time and sharing, and thank you for your support and understanding of PowerBI! 

Best Regards,

Aniya Zhang

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