Is there a way in Survey123 to unselect a select_multiple value based upon the user selecting another value from the same select_multiple question? I have a select_multiple question that defaults to 'None', but I would like 'None' to become unselectable and/or unselected if a user selects any other value from the list. I have tried a number of expressions in the default column, but to no avail. Are there any suggestions as to the best way to achieve this behavior? Is there default column the best place to try to achieve this?