Ok my first time here so ill start by saying hello. Now heres what I want to do. I want to use a drop-down list so you can select different types of wood. That part i got. what i cant figure out is how to use my drop-down selection in a formula. I want the user to be able to select the type of wood in the drop-down, this will in turn add a specific number to an equation. (ex: picking spruce will in turn add 30 to the equation). How can I do this?