This article will walk you through the steps to add a News Preferences to a Card in Now Assistant.
To add a News Preferences, first step is to add a setting to a card then use that setting to control how that card renders.
Prerequisite: First have the version of the BBC News Card working.
Follow the below steps to add a News Preference to a BBC Card.
Create a file customize.form in the card folder (depending on the template which was used to create the card, customize.form may already exists.)