How to convert text to Title Case/Proper Case/CamelCase

Hi, this will work with sample data, but I'm affraid that it won't solve your issue whit other texts

Result

Add this as custom column. Replace Source with your previous_step reference and [Column1] with your column with such text

= Table.AddColumn(Source, "Transformed", each 
        [ a = List.RemoveMatchingItems(Text.SplitAny([Column1], " -"), {" ", ""}),
          b = List.Distinct(List.Transform(a, (x)=> if Text.Contains(x, "/") or Text.Length(x) < 3 then x else Text.Proper(x))),
          c = Text.Combine(b, " ")
        ][c], type text)

Whole Code

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WCghQcHN0CvJ0DlbQVQBxEpOKMpOLlWJ1QHL6Hi7OrnAFYEFnf78QR08/1yAgNxYA", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Column1 = _t]),
    Ad_Transformed = Table.AddColumn(Source, "Transformed", each 
        [ a = List.RemoveMatchingItems(Text.SplitAny([Column1], " -"), {" ", ""}),
          b = List.Distinct(List.Transform(a, (x)=> if Text.Contains(x, "/") or Text.Length(x) < 3 then x else Text.Proper(x))),
          c = Text.Combine(b, " ")
        ][c], type text)
in
    Ad_Transformed