<i>But in the case of icons, you could still move things around and the user would find it less demanding to locate the new place of the function by identifying the pictogram quickly</i><p>FYI, this is almost certainly not true. Research suggests that users only recognise a very limited set of icons in an application, and where there are extensive toolbars full of different icons, it is often the position that the user is recognising more than the icon itself. Thus reorganising things like toolbars can have a profound negative effect on usability, and it seems likely (though I&#x27;m speculating now) that this would be much worse than something like reordering text items in a menu.