Zabbix low discovery not separated graphs for item

I have LLD item with

{#DOMAIN} and I need to create ONE proto graph with this item - it means there will be several items in one graph finaly. Not several graphs and each includes just one item ({#DOMAIN}

in the name of proto graph).

Is there any chance how to achive this?
I have upgraded to 2.2.0.
Will be this possible in future?

Thank you very much.

Martin