Is there a way to change the settings for all my Redax boxes once they are already drawn?

To make these changes, choose the menu option: Redax > Redax Preferences … The Preferences dialog window will open. Make your desired changes for Redax boxes and then choose “Apply to Current Document.” A new dialog box will appear, you have the option to save your changes, make adjustments or cancel. If you are changing exemption codes, be sure to check the box next to “Exemption,” which is unchecked by default.