Pressing the “Set Options…” button gives you a chance to change the layout and quality options for each selected print file. If they are later sent to the printer, the output will reflect the changes made here.
For instance, you can change the quality of a print file from High to Medium (where applicable), or toggle font substitution. Note that not all options are mutable; for example, you cannot change the ΓÇ£Reduce or EnlargeΓÇ¥ value using ΓÇ£SetOptionsΓÇ¥.