It would be really great If I could create a Data Collection template with a variable in it for different values.

IE: Description = %h CPU Utilization

Then when this template is applied to hosts the %h would be replaced with the actual hostname. This way when I create a graph of a group of boxes their descriptions are labeled by hostname.

Is this possible already?

Hello!

It's not possible now. But idea is very good, so I definitely will implement it.

Best regards,
Victor