To bind element with dynamic data, first you will need to select a Html element from the preview window or code window. Then, click the ‘Data’ button and select which data you want to bind.

If you haven’t added any data source yet, you can click the plus sign button to add a data source.  Available fields for binding will be generated automatically. 

The field name is in the following format:

'data_source_name'.'related_attribute_or_data_field_name'

On the above example, there is a data source called 'blog_list' which is a content folder contents some blog articles, each article will have a title. So if you need to get all the article titles from that content folder, you need to bind the data to 'blog_list_Item.Title'.