Overview
To address this issue, since Zabbix 2.4 it is possible to create ad-hoc graphs for several items in a very quick way.
Configuration
To create an ad-hoc graph, do the following:
Go to Monitoring → Latest data
Mark checkboxes of the items you want to graph
Note that to avoid displaying too many lines in the graph, only the average value for each item is displayed (min/max value lines are not displayed). Triggers and trigger information is not displayed in the graph.
In the created graph window you have the available and the possibility to switch from the “normal” line graph to a stacked one (and back).