Ok, I'm in the Shader Rules part of the material.  I understand to use the same procedure as before, 1.run the script, 2. click Designer, 3. click Add Rule Node (and I'm doing this in the Shader Rules section of the material room instead of the Apply Rules section).

Here's where I'm confused, not sure what you mean by "connect it to the "Copy Template Cornea" (I don't see that in the nodes that are there, I only see Rule Cornea, am I creating it?).  Do I choose to add a "Template Cornea" rule node, or choose "other - type it in" as I did the first time?  If I choose to add a Template Cornea rule node it won't let me change the name, also then what am I connecting it to?  Sorry about the confusion, I think I'm on the right track except the last part....here's a screencap of where I am so far.