Hi soundtrack it
create a table with only one record and a text field, where there are, as values, your values.
Now create a value list based on all the values of that field.
Whenever you want to add a value to the value list, simply add a value to that field by hand or by script.
and what IS the script for adding a value?
Set Field [ Table::YourField ; Table::YourField & ¶ & TheFieldContainingTheNewValueToAdd ]