How to synchronize the report value between the page header and the group section in the same batch

Hi dear oracle colleagues
When we creat a group section and copy the pae header's report valuable into the group section.
We found that the valuable couldn't display in the group section.
Is there any fast way or standard way to synchronize the report value between page header and the group section?
Synchronnize the report value from the page header to the group section in the batch Application.

There're a lot of report value in the page header

We would like to  creat a group section with named manual page header with copy the value from the page header and display like the page header in every page...