The monitoredobject_list parameter accepts a comma delimited list of connections in the format host_instance_sqlserver for named instances or host_sqlserver for default instances. E.g. rqa777r43_test14_sqlserver or ptr2i87sw_sqlserver
Here's the scripts
USE [SpotlightStatisticsRepository]
GO
DECLARE @t table
(
[Time] datetime,
monitored_object_id int,
monitored_object_name nvarchar(200),
monitored_object_display_name nvarchar(200),
[Response Time] int,
statistic_key_id int
)
insert into @t
EXEC [dbo].[spotlight_rt_get_batch_data2]
@start_date = N'jan 1 2012',
@end_date = N'jan 1 2018',
@monitoredobject_list = N'host_instance_sqlserver',
@table_name = N'SQLResponseTime',
@column_list = N'ResponseTime'
select monitored_object_display_name as [Connection], [Time] as [Date Time],
[Response Time] from @t
order by monitored_object_display_name, [Time]