Copying shipment events to shipment group

Hi,

I'm working in OTM 6.2.9. Need to copy tracking events from shipment to shipment group and unable to find the appropriate agent action to do the same. No relevant option is available within Datatype Association-Shipment to Shipment group.
I'm trying to do this using Direct SQL Update. I can find only two relevant tables. sg_event_group and sg_status_history.

The 'track and trace' on shipment_group is not displaying events that are added by Direct SQL update(insert) of the above two tables. Moreover, the Shipment Group event page contains stop location, eventdate,etc. Unable find the table behind these fields.

Could someone please help?

Thanks,
Shabuja