Collections provides the opportunity to collect graphs of different hosts and services on to one page. That way - as an example - you can display the traffic rates of all tape libraries.
The setup of Graph Collections is done through the configuration page.
Go to Configure and click on the Graph Collections icon.
There are two ways to select which services to show in the graph, either use the GUI to select the services from the list or use regular expressions.
Enter a collection name and select which services to put in the collection by selecting them from the list.
Check the checkbox for Use regex
The host and services is now selected by a regular expression.
In the example below we select all graphs from the host which names starts with "switch" and services that contains "Interface" and"Traffic". Note that regular expressions are case sensitive.