Adjust whether or not you want crop marks attached to your object. "Length" indicates the length of the crop mark line. "Distance" adjusts the distance to the object.
Decide whether or not you want bleed marks on your object. "Bleed" indicates how much "space" or distance should be added to your object.
Decide the line weight of your marks. All marks are automatically applied a register colour and will be added to all colour shapes when printing.