After dropping the Script component onto designer, the GUI is going to want to know how you want to use the component.
For our article we want to use it as a transform. That means that it can accept 1 or more inputs and can have 1 or more outputs. This article will keep things simple and only have one of each as shown on the opening page. After hooking up our source to the Component we can then go ahead and start to configure it.
The first page shows us our available inputs at the top and because we only have one then it shows only Input 0. Underneath we can see the columns available through that input and for our example we will need to check both of them.