[jjnevis]

In much the same way as you have the three user defined modes (on a K3 anyway), you would have the option to save all your settings in say three users namable slots in the menu, or to revert to default settings. This would make it really easy to share your camera with someone who might have very different requirements, it would also give much more flexibility for pro users who might have different requirements depending on the shoot they were attending. I don't know how the OS of these cameras work, but I would have thought this would be fairly trivial. This could also allow people to "share" settings files, which becomes more relevant as cameras get ever more complicated. (this may of course be possible on some cameras, but I don't think it's possible on the k3). On the K3, it would also increase your user modes to 9, if that's important to you.