Grouping Rows

[#1]

Hello all,

                    I want to group rows on the same column for eg:

Serial No.          Character

1                       Alphabets

2                       Numbers

Clicking on will give the following output:

Serial No.               Character

1                            Alphabets

                              a

                              b

                              c

2                            Numbers

                              1

                              2

                              3