In the SQL Template Designer, check only Host Groups and Client Scope.

In the Query window, enter the following select statement and click Validate Query:

SELECT g.group_name, s.server_id, s.display_name client,
s.hostname, s.ip_address
  FROM apt_v_group_member m, apt_v_group g, apt_v_server s
 WHERE g.group_id = m.group_id
   AND m.child_type = 2 --Server (excludes children that are host groups)
   AND m.child_id = s.server_id
   AND s.server_id IN (${hosts})
ORDER BY s.display_name, g.group_name

In the Formatting window, select the fields to be displayed. For this example, it makes sense to select all and display the report as a Table.

Click Next, enter a report name and select a Menu Group. Then, click Finish.

When you run this report, you can modify the scope to generate the report for a specific host group. The output will look something like this:

Note that the column header "client" was substituted for the field name, as specified in the query. You can specify similar substitutions using the Formatting window in the SQL Template Designer.

Since this query is ordered by display name and then group name, it may be more reasonable to display the output in a similar fashion. Use the Formatting tab to re-arrange the table columns (Move Up, Move Down).

See Format the SQL Template Output.