I hesitate to bring this up to the list because I don't like to micromanage the application, typography, or page layouts. I leave that to the experts. (About a dozen years ago I spent a lot of time trying to install Type1 fonts in LaTeX, but gave up when I realized 1) I was wasting time better spent using the tool and 2) Palatino is a perfectly fine body text typeface.)
However, ... there are a couple of icons I regularly use (such as the footnote insertion pictograph) that don't appear because despite the LyX window size in my 20" LCD wide screen monitor, there's not sufficient room for them. At the same time, there are some icons I never use (Save, Print, Open) and I'd like to either delete them or change their positions with the icons I use more frequently. In ~/.lyx/ui/classic.ui I find the menus. Where can I find the contents of the toolbars so I can mess them up from the order set by the developers? Rich