[MARMO]

This is my first post, so if this is a common question I am asking, please forgive me.

I need to add a couple of configurable drop down menus so the customer can pick color and size, or make and model, etc. When the choices are made, X-cart must select a unique SKU for the product in that color/size, so Ican keep my inventory straight and the shipping dept straight. I have seen this feature on several other X-cart sites - anybody know where can I get it, or is this a build it each time one-off thing?