On the EN forum you can find a mock-up that redistribute the Cross-Reference tab on Fields→Others dialogue, using the space in a far better way
Link to the post http://forum.openoffice.org/en/forum/viewtopic.php?p=273543#p273543 link to the image http://forum.openoffice.org/en/forum/download/file.php?id=16977&mode=view Is something like that possible/difficult/easy to do? It will be a huge improvement for complex documents. Regards Ricardo