Each of the Grabber tools has a preferences dialog which can be accessed by double-clicking on the desired tool. Each preference item is described below:
 
Show Startup Icon: When this item is checked, the scrolling Math Grabber startup icon will be displayed when QuarkXPress is launched.
Fast Scan Mode: When Fast Scan Mode is enabled, Math Grabber uses a different search method to determine the location of text within the marquee area. This Fast Scanning method can be up to 3 times faster than the standard (character by character) scanning method.
Enable Hot Keys: This option enables the Math Grabber Undo/Redo hot key (Cmd-Option-Z). Should this hot key sequence present any conflict (perhaps with another XTension), simply uncheck this option and the hot key will be disabled. Note that you will still be able to access the Undo/Redo feature by using the Grabber™ menu available under Quark’s Edit menu.
Separator Setup: This button will bring up the Separator Setup dialog. Please see the Separator Setup section below for a complete description of this feature.