How to implement overflow area below?

Hi all,

I have the following situation very often:

1) A datasource with many (> 30) columns
2) Only a few of these columns (for example 8) should be displayed in a grid showing 15-20 rows at the time
3) The rest of the columns should be displayed below this grid

In Oracle Forms this was easy. In Designer i declared the important 8 columns as "context" and the rest of the columns in an "overflow area below".

In Formspider i expected that the context of a datasource was always the same, so i did this:

1) Created one datasource
2) Created a grid referencing this datasource for the important 8 columns
3) Created a few panels to "item group" the rest of the columns

The layout is perfect now. BUT, when i navigate through the rows in the grid, the panels do NOT show the details of the current row in the grid. They always stay on the first record.

So, the context of a datasource is not synchronous accross all panels...

What must i do to show the correct details cq fix this?

Kind regards, Jan Willem Vermeer