Hello,

This request especially targets sales and purchase documents where coexist factboxes related to the header and lines.

When a user has the focus on the lines, the factboxes related to lines often requires to scroll down.
When you are switching between headers and lines, it might requires to scroll every time to see the related informations.

Some suggestions:
* In Focus mode, factboxes related to the header could be moved below those related to the focused page
* When focusing a subpage, the first factbox related to it could be bring at the same level as the subpage