In the Filter widget, when you set up your SQL expression, there is an option to create a dropdown menu with all of the unique values in a given field (the Unique option). I would like to have the option to turn off the "All" option because I have a use case where it doesn't make sense for the user to see all of the data at once. Right now, my only option is to do predefined unique values, but there are 105 counties in my list and the builder does not seem to want to add more than 30 or so records.
