Pathfinder often uses a universal variable called abValue. This does not seem to exist in Savage Worlds, and for the most part is not needed. But as I correctly guessed, you can indeed have PP show up in the name of the Temptress edge. Go ahead and alter the code to get the equations that you want, but this will give you a baseline. I have no idea what Timing to use, but since it is likely you want to use your Traits, I tested it for Traits 5000 and it works.
Code:
var PPoint as number
PPoint = 10
field[livename].text = field[thingname].text & " (PP: " & PPoint & ")"
I had been using a Derived Trait for Command Radius, but I will now go back and steal this idea and just make it appear on the Command edge.