Update the code to check for a settings file and use those settings by default if they exist.
Also include a section of the page that allows you to expand the settings fields (add settings fields) and use a checkbox to determine if settings should be saved.
Update the code to check for a settings file and use those settings by default if they exist. Also include a section of the page that allows you to expand the settings fields (add settings fields) and use a checkbox to determine if settings should be saved.