how to create a template for a system field?

[Nagaveer]

I want to create a template for the field Description, i.e.
Slide 41

A template will be defined for this attribute to guide what information should be provided by the reporter.Plz suggest...

[RambanamP]

i am not sure you can do it on ondemand jira, but following post related to installed version

https://answers.atlassian.com/questions/26960/prepopulating-jira-system-fields