add the featured column to the table, set the default value to 0
add the checkbox to the insert and update pages
on the insert page set the checked value to 1
on the update page, update the recordset to include the featured column. use the dynamic button in the properties inspector for the checkbox, set the Check if option to the featured column from the recordset, and set the value to 1.
then update the insert and update behaviors and bind the featured column to the checkbox.