I want to remove the extra spacing found within the top of the drop-down list when an item is selected. I have set my margins to 0mm but it still remains. Does anyone know how to set this property?
You can't ...that space is required to show you the little dropdown arrow at the right of the selection.
You can get the selection a little closer to the top by using the top justification selection in the Paragrapg palette. Make sure that you are only changing the value and not the caption and value.