The Content Block component designates regions on the page where pre-styled instances can be inserted in Content mode.

• In Content mode, you can edit any direct child instances that were pre-added to the Content Block, as well as add new instances predefined in Templates.
• To predefine instances for insertion in Content mode, switch to Design mode and add them to the Templates container.
• To insert predefined instances in Content mode, click the + button while hovering over the Content Block on the canvas and choose an instance from the list.