A640: Vertical Panorama?

I'm interested in buyng an A640, BUT: What I miss(ed) is the ability to select also vertical direction in stitch assist (landscape position). In the camera, only horizontal directions (left/right) can be selected. While the ability to use vertical direction is most useful in taking a photograph (or panorama as you like) of eg a tower or within a gorge.

Any ideas whether this is possible? I just tested an A640 and I only got the option of moving left or right...