Ex 19: A chain of prisms is built in sequential mode. Several surfaces are inserted into the LDE and surface properties are alerted to tilt the front and rear face of each prism. Coordinate breaks are inserted around the prism and then the sequence of coordinate breaks and prism surfaces are copied to create a semi-circle chain of prisms. Both the Local to Global and the Global to Local tools are demonstrated with this system. This sample is the equivalent of the KBA article “How to Work in Global Coordinates in a Sequential Optical System”