Oce Color System 200 Operator's Manual page 123

3.
Designate the area, using the edit pen.
Designating a rectangular area
Use the edit pen to designate two of the opposing corners of the
rectangle.
Designating a non-rectangular area
Press the NON-RECTANGULAR key.
To designate non-rectangular areas, see "Non-rectangular Area
Designation," on p. 3-12.
4.
Press the OK key.
5.
Set the copy modes.
Area Designation (Using the Edit Pen)
3-15