You can customize the window and the program defaults:
Changing the function key assignmentsFunction_keys.tex
Changing the magnificationMagnification.tex
Customizing automatic substitutionAuto_sub.tex
Customizing the document viewCustom_view.tex
Customizing the document windowCustom_window.tex
Customizing the Math/Text toggleChange_toggle.tex
Customizing the program defaultsCustom_defaults.tex
Customizing the start-up documentCustom_startup.tex
Customizing the toolbarsCustom_toolbars.tex
Customizing the working viewView_menu_commands.tex
Display or hide nonprinting charactersDisplay_nonprinting.tex
itbpF38.875pt24.5pt6ptindex.wmfindex.texCustomizingindex.tex#Customizing