April 22: The reading for custom designs is Chapter 2 from the document "JMP DOE guide.pdf" that is part of JMP-In. If you have your own copy of JMP-In, look in C:\Program Files\SAS Institute\JMPIN51\Documentation for this file. If you are using a lab machine, you can get to this file from inside JMP by selecting Help-->Contents, and then from the left panel expanding Design of Experiments, and then selecting Introduction to Custom Designs.