The Options tab allows you to set general environment settings.
When active, the Show ScreenTips on toolbars check box displays a tooltip when the mouse pointer is placed over an icon in any of the icon bars. The tooltip contains a short description of the icon function, as well as the associated keyboard shortcut, if one has been assigned.
The Show shortcut keys in ScreenTips check box allows you to decide whether or not you want to have the shortcut displayed in the tooltip.
When active, the Large icons check box switches between the standard size icons, and larger versions of the icons.