I suspect this will be an easy answer for someone.
I have a Main data Source with a series of fields defined in it. This source has been modified a few times and now I want to "clean it up" by organizing it a little better. The top field in the list would be better suited a few fields down but when I right-click on it, both "Move Up" and "Move Down" are not available as options (dimmed out). The second field in the list will allow a "Move Down" but not a "Move Up".
How can I get this field to respond as all the others and allow it being moved in the structure of the data source?