Just to emphasize what Paul said: Font size in LyX, as well as other things, like widget style, is controlled by Qt, so running qtconfig, or qtconfig-qt4, or whatever it's called on your system, will allow you to change font size.2. Since I have high myopia it would be useful me to have really largebuttons (as in Excel for example...). I am afraid it is not possible. Am Iright?
rh
