How To Calculate Item based on two others

[CHOUETTE38]

Hello,

Through SNMP, I retrieve two value for printer consumable like toner.

Full capacity
Capacity available.

So the Capacity available/Full capacity give the % available.

If I have no problem to define a trigger to have an alert in case of low capacity, I would to show the % available on a screen.

How to do that ?

Is it possible to define Item Calculated based on other Items ?

Other Idea ?

Thanks in advance for your answer

[Alexei]

It is very likely that this functionality will be supported in Zabbix 2.0.