How to add all related items in the TAXII collection if I create collections for indicators with a specific label in it?

[NeerajGulia]

I am exploring opencti TAXII collections and wondering how can I achieve to get all related items in the TAXII collection if I create collections for indicators with a specific label in it?

eg: I have one indicator with one label named "test". This indicator has few relationships with malware, attack pattern, etc.
Now if I create a TAXII collection with entity_type as indicator and label as "test" it only gives me the indicator. But I did not find any way to also provide all relationships and its related objects in the same collection?

I would be very thankful if anyone could provide me any pointer in this regard.