extra-offsetproperty, which has a pair of numbers as value, moves around objects in the printout. The first number controls left-right movement; a positive number will move the object to the right. The second number controls up-down movement; a positive number will move it higher. The units of these offsets are staff-spaces. The
extra-offsetproperty is a low-level feature: the formatting engine is completely oblivious to these offsets.