This control saves the state of general controls, except for SAVE and restore themselves. SAVE's can be nested to eight levels. The state of these controls can be restored with the restore control. The typical use is to save the state of the masterlist flag before calling a macro that turns off the listing. After the macro, restore is used to set the masterlist flag to its starting state. The class is general, although SAVE is normally not used on the invocation line.