Hi, a customer asked me if it is possible to create "projectable" designs in the Custom Designer.
A projectable design he specified as a design of let's say n factors, where I could e.g. take any 3 of the n (>3) factors and they will build a full factorial design itself. Then it is called a 3-projectory design.
I didn't come across this before, so I thought our DOE champions my can provide some insight 
Thanks
