This can be used to reverse pages. If no number is given, the page number defaults to 0. Following each page number is an optional offset value in parenthesis, which consists of a pair of comma-separated dimensions. Each dimension is a decimal number with an optional unit of measure. The default unit of measure is inches, or the last unit of measure used.
All units are in true dimensions.
The identity transformation. This time, both the modulo and the page number are defaulted. Selects the first, third, fifth, etc. Print this one after printing the next, taking the paper out of the feed tray and reinserting it into the paper feed. Selects the second, fourth, etc.