Kibana Export Saved Objects API

Hello guys !
I’m looking for some documentation about Export API on a secured Open Distro for Elasticsearch Kibana.

I found out that the right URL is : http://localhost:5601/api/kibana/management/saved_objects/scroll/export

So I can save every saved objects of a particular tenant, my accounts only have one tenant.
But I would like to be able to choose which tenant I would like to save stuffs from.

Is it possible?
I saw in Search Guard documentation that they allow it with the “sgtenant” parameter.

curl \
   -u hr_employee:hr_employee \
   -H "sgtenant: management" \
   -H 'Content-Type: application/json' \
   -H "kbn-xsrf: true" \
   -XGET "http://localhost:5601/api/saved_objects"

Search Guard Documentation

My main goal is to make one account that backup saved objects of each tenants.

Thank you for reading.
Thi