Do your usesr need to have patterns auto-propagate based on some predefined criteria but hate to use equations to drive them?  Does picking a few driving parameters and having an equation determined sound appealing?  We need your input.  When do they need to use this type of patterning?  How do they currently satisfy your need?  How would you expect to pick what and how to pattern?  What kind of start and end conditions do you want to use?  Please keep replies limited to this subject and as always, thank you for your input!