Ok, I see it now,  I just didn't scroll over before, so I didn't see it, thanks hborre.

So I just have to create a rule node and use the "other-type it in" option and type in lenscovering, (using asterisks before and after), then connect that to the Template Cornea node, then re-save the VSS prop, correct?

I should probably save the vss prop as a separate one just in case, so I don't ruin the first one.