menubar : Toggle visibility of the menubar.\n
scrollbar : Toggle visibility of the scrollbar.\n
frame : Toggle visibility of the frames around editing window.\n
+ zoomslider : Toggle visibility of the zoom slider in tabbar.\n
+ zoomlevel : Toggle visibility of the zoom level display in tabbar.\n
fullscreen : Toggle fullscreen mode. This also covers calling the
previous functions. However #LFUN_TOOLBAR_TOGGLE for the
custom tweaks of the toolbars should be used.