Resource Groups provide a simple way to display a list of resources who share the same parent resource.
ContentBlock Field Demo
1 - Resource Selection
You may use the resource selection field to choose a parent resource, by typing the resource's page title or ID.
2 - Settings
Wrap in Panel?
Enable this setting to wrap the resource list inside a stylized container, called a panel.
Use this to set the number of columns into which the list will be divided.
This setting lets you choose which resource field to display as the link text for each resource to be listed.
Choose the style for the panel. This effects the color of the panel and its heading.