Creating Index within Index

Hi, roncruiser 

The complete code, I've changed it, you just need to follow the picture below to modify the parameters to achieve your desired effect.

// output
let
    Source = Excel.CurrentWorkbook(){[Name="Table2"]}[Content],
    chType = Table.TransformColumnTypes(Source,{{"Delay", type number}}),
    fx = (tbl as table, Coarse_start as number, Fine_start as number, Fine_end as number)=>
       let
         sortedTbl = Table.Sort(tbl, {"Delay", 0}),
         rows = List.Buffer(Table.ToRows(sortedTbl)),
         n = List.Count(rows),
         gen = List.Generate(
                   ()=>{0, {}, 0},//{counter, {new_list}, delay_counter}
                   each _{0}<=n,
                   each let count = Fine_end+1-Fine_start,
                            Index1 = _{0},
                            Coarse = Number.IntegerDivide(_{0}, count)+Coarse_start,
                            Fine = Number.Mod(_{0}, count)+Fine_start
                        in  {_{0}+1, {Index1, Coarse, Fine}, _{0}},
                   each List.InsertRange(rows{_{2}}, 4, _{1})
          ),
        toTbl = Table.FromRows(
                     List.Skip(gen), 
                     List.InsertRange(
                           Table.ColumnNames(sortedTbl), 
                           4, 
                           {"Index1", "Coarse", "Fine"}
                      )
                )
      in
        toTbl,
    group = Table.Group(chType, "Ref", {"t", each fx(_, 3, 4, 11)})[t],
    result = Table.Combine(group)
in
    result