Okay, since I am working on Ragnarok rules, I finally realized I needed to address this very problem. Arcane Backgrounds cost two slots. So I read through this thread and I see Rob mentions a fix for this. So the question is, how do we accomplish this? I looked around the editor, there isn't a nice field to put in Slot Cost for an edge.
I tried an Eval Script:
perform #resspent[resEdge,+,field[edgCost].value += 2
That gave me errors. So, how do we double the slot cost for an Edge?