Develop OptionScreen

[root]

        Now. I 'm developing program LyX version 1.0.4.
        So, I need your help about function of "ScreenOption".
        Now. I use textbox to include font-type and other part in
        ScreenOption but I want to change textbox to list-box for
        selection.

        Could you please send me some examples of each part that
        have to change in each file.

        Could you sent the files to me as soon as posible, please?

        Thank you for your kindness.

                                Sincerely

                                        Jirayus Arunwech