I'm running WAB 2.2 with the Jewelry Box Theme. I have an edit widget and three custom widgets that appear in the WAB widget tab. I need to be able to add more widgets than the three custom widgets I already have. I can add a widget to the header control. However, I do not want the widget on the header control. My intention is to activate the widget via a Feature Action by selecting a feature on the map. How can I add more widgets?