Use case: - one screen with good colour display - another screen which is OK for the interface but is not good for photo editing. Example: Plug my cheap netbook into a seperate display. I would like to be able to control the editing (for instance using Curves) on the small (and bad contrast) netbook display. But I would like the main image to be displayed on the good external screen so I can see the effect accurately. Many other photo editors allow you to "float" palettes and panels so that this can be achieved. I think this has been discussed before but I cannot find an appropriate WISHLIST item.
This wish go in opposite way than digiKam rules. We don't want to reproduce GIMP GUI here. I use also multiple WQHD screens here, and i use editor on calibrated screen, other one run AlbumGUI. This workflow work perfectly. Gilles Caulier