Add "View Usage" in Event Form Settings > Config Settings

When viewing Event Form Configurations, it would be very helpful to know which user groups are using each Configuration. For example, Before deleting one of our Event Form Configurations, I need to confirm that it is no longer in use. To do that, I have to go to the Group Administration and check the Event Form Configuration each of our Groups individually. It would be helpful to have a 'View Usage' button for each Event Form Configuration (similar to what is available for Master Definitions).