The Social Group module Group List Template field Help states:
You can modify the default template in order to customize the group list display.
Common tokens are:
[groupitem:GroupName]
[groupitem:GroupDescription]
[groupitem:PhotoURL]
[groupviewurl]
What is the DEFAULT TEMPLATE?
It has the # posts, # members, but as soon as you enter a 'custom' template, there's no where I can find how to include any of the 'default' items in the new template layout.