My addon requires the option to be displayed in the following format :- [...department name...] : [ ...email address.....] (+) Clicking on + button at the end will duplicate these fields in the above mentioned format just below. I have therefore created a new Contact Group inside Options, and now creating a new option in it. I'm stuck with 'Edit Format' and 'Format Parameters'. I'm guessing that in order to display the option fields like above, I will have to write HTML in a template and then fetch it. I think the way to do this is to select: Edit Format: 'Named Template' Default Value = 'The Template Name?' Or What? I couldn't find relevant information about using 'Named Template' and 'PHP Callback'. Can someone tell me how do they work?