unwanted popup values

Hi All,
I'm new to HanDBase (as of last week) so this might be a stupid question ...
When I populate a popup field with three legal values (low, medium, high) I also get the options at runtime to select "no value" and "edit popup list". I cannot permit either of these options to be available to real users otherwise they will use them - the last item could be disastrous. How can I get around this?
With many thanks in advance,
Mike
I'm new to HanDBase (as of last week) so this might be a stupid question ...
When I populate a popup field with three legal values (low, medium, high) I also get the options at runtime to select "no value" and "edit popup list". I cannot permit either of these options to be available to real users otherwise they will use them - the last item could be disastrous. How can I get around this?
With many thanks in advance,
Mike