Hi Macropod. Your example is a very clever way using field codes to manage drop-down values. I would prefer to (/chose to) use check boxes for two reasons: 1. so that I could add explanatory text (in status bar) for each of the items (they're not that self-explanatory and a drop-down list didn't give me enough space for the explanatory text I wanted to use). 2. It is quicker and easier for users to see what options are available and to choose the appropriate one... but your solution using field codes is still a pretty good solution.