How would you set up a dropdown list that is driven by the selection in a previous list.
Example: column one has ten property's to choose from, column two is a list of locations specific to the property that was chosen in column one. Chosing a different property in column one changes the list to choose from in column two.
Would eventually want this to go a few layers deeper, column 1 choice drives the available choices in column 2, the choice in 2 then drives available choices in 3 and so on...