Replace duplicate actions value except the first item for a user

Here it is

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WsjREQCUdpcy8zJLMxJz4zJLU3GIg38hA16s0R9fISClWB0NxTmZ2KiE1GAaaEmEgMWosSbDUTNexNJ1YBxLhY0sqm2dkhMNAIyJC2YgUS8k1EFcIIpmHUBILAA==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [#"Mobile Number" = _t, Actions = _t, Date = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Mobile Number", type text}, {"Actions", type text}, {"Date", type date}}),
    #"Added Index" = Table.AddIndexColumn(#"Changed Type", "Index", 0, 1, Int64.Type),
    #"Grouped Rows" = Table.Group(#"Added Index", {"Mobile Number"}, {{"AllRows", each _}}),
    fxProcess=(Tbl)=>
    let
        #"Filtered Rows" = Table.SelectRows(Tbl, each ([Actions] = "initial_items")),
        #"Removed Top Rows" = Table.Skip(#"Filtered Rows",1),
        #"Merged Queries" = Table.NestedJoin(Tbl, {"Index"}, #"Removed Top Rows", {"Index"}, "Removed Top Rows", JoinKind.LeftOuter),
        #"Expanded Removed Top Rows" = Table.ExpandTableColumn(#"Merged Queries", "Removed Top Rows", {"Index"}, {"Index.1"}),
        Custom2 = Table.ReplaceValue(#"Expanded Removed Top Rows",each [Actions],each if [Index.1] <> null then "more_items" else [Actions],Replacer.ReplaceValue,{"Actions"}),
        #"Removed Columns" = Table.RemoveColumns(Custom2,{"Index.1"})
    in
        #"Removed Columns",
    #"Added Custom" = Table.AddColumn(#"Grouped Rows", "Custom", each fxProcess([AllRows])),
    #"Removed Columns" = Table.RemoveColumns(#"Added Custom",{"AllRows"}),
    #"Expanded Custom" = Table.ExpandTableColumn(#"Removed Columns", "Custom", {"Actions", "Date", "Index"}, {"Actions", "Date", "Index"}),
    #"Sorted Rows" = Table.Sort(#"Expanded Custom",{{"Index", Order.Ascending}}),
    #"Removed Columns1" = Table.RemoveColumns(#"Sorted Rows",{"Index"})
in
    #"Removed Columns1"

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