In this page, available only for WIDGET components, you can define how the widget can be configured in the Template Editor.
Please note that it is not mandatory to fill in this section, but is only necessary in case you want to configure the widget through the template editor.
Without this part, the widget can be used, but must be configured manually in the code view of the template editor.
Elements
In the Element List you can define the sub-elements that can be placed under the widget, and for each of them specify the properties.
Properties
Each element can have its set of properties, that can be configured in the Property Panel of the Template Editor.
Properties can be grouped into sections, that can be made collapsible in the property panel.
When editing a property, you have a set of basic information to provide, like Name, Label, and other information that are related to the property type.