How to suppress a group in reporting services and still show the detail for the group

Hi, Guys...
I have a problem in suppressing the group in reporting services. When i
set the visibility of the group with expression to false then the group
include the detail will be suppressed. How can i suppress the group
without suppress the detail of the group?
Thank you
Regards,
SumardiDid you set up 2 groups or just one?
What is the structure of your data?
regards,
Stas K.