We'd like to change issue status as a custom trigger if an issue has a given status.

As far as I can tell "Field update" is available for business rules, but not available as a simple solution for "Custom Trigger", which is what we need. However it seems to be possible to execute a script.

We'd like help with a script that updates an issue ticket. Please provide a generic script which explains how to access an issue object in the scripting field and how to modify the issue status property.

I know the status ID and name that we need to change to, so I can modify your sample script accordingly if provided.