First, Last and...Functions

Hello All,

I know that I can use something like:

=First(Fields!Group.Value, "helloWorldReport")
=Last(Fields!Group.Value, "helloWorldReport")

To get the first and last records of my dataset. However, how can I get the ones in between them? What if I have 9 or 10 other records, can it be done?

Thanks in advance,

Leo