set overlayunderflowtolerance= { 0 | 1 | 2 | 3 | 4}

This option controls the tolerance for pass reduction. When pass reduction is enabled, this option sets the amount of disparity to accept when a final page variable value is smaller than the space it is overlaid in. Arbortext Editor never accepts an overlay if the new value is larger than the space it is overlaid on (the default is one character).