Use only a single field in group by

Hi All, I am trying to work out another problem.

I have a master detail form which has the job details and the list items for the job. job number is the master detail. my problem is this, I have added a summary group by page to the form, which works but currently showing up all details in the list items. how can I make the group by only show the job number for the page i am in?

you can select that from the rule, if i understood your issue currectly, you can select the fields you want to display from the group by rule