Add new item as function of others.

[zabbix_es]

I need to know if it is possible to add a new item as function of others.
In my case I have two items received from zabbix trapper and stored as delta values and I need to create another as newitem = item1 / item2 (rate).

I can't receive item1/item2 from trapper because I need to use delta values calculated by zabbix.

[Alexei]

Calculated items are not supported yet. Possibly this functionality will be supported at some point.