I really badly feel the need to be able to drag'n'drop items upwards/downwards in the Domino Designer 8.5 working set, in order to keep related items close together.
In the illustration, I get frustrated when I can't move the currently-highlighted app "iText PDF text stamping prototype #3" downwards a couple of rows (indicated by the green arriow) so as to better associate this app with two others (where I've also been testing iText for PDF generation and stamping).
You always could shift things around in the old Domino Designer, and not being able to do it in DDE 8.5 is quite an annoyance.
I've added a short explanatory video to my blog post about this, see http://notestoneunturned.blogspot.com/2009/11/rearrange-items-in-domino-designer-85.html
Jesper Kiaer has analyzed this issue in more depth, and I concur with all his points, be sure to see his suggestions: There are lots of good stuff in the 8.5.1 designer, but one thing really stinks