How to remove the alphabetical breaks?

[Cao Ye (Meg Cao)]

Hi, all,

When I use standard index automation in FrameMaker, the alphabetical breaks
will be generated automaticlly like following:
        A
        alone
        apple

        B
        boy
        .
        .
        .
Can I remove the "A" ot "B" such alphabetical breaks to make the index like

        alone
        apple

        boy
        .
        .
        .

Thanks
-Meg