I rushed to a conclusion
but I'm afraid this plugin only solves 50% of what I need to solve.
This plugin helps me insert a set of Options for the Product (i.e. Size Small, Medium, Large) and assign how much to add on the base price (i.e. Small +1, Medium+2,Large+3)
However, I want to be able to change the numbers +1,+2,+3 ONCE from the Custom Field and automatically update them under all Products.
So i'm looking to have something like a 'Master Custom Field' that will allow me to control the prices from 1 location which will then be applied to all products automatically.
I hope I'm clear to what I'm trying to achieve..