Using an inline script can be painful as you have to keep clicking buttons and saving.
It's more productive to point to a file so it can be updated automatically.

script file

If you have a groovy script as opposed to a groovy class, as in the previous examples, the method name should be `run`.

When configured like this you can modify your code without even leaving the Resolve Issue dialog, let alone doing a page refresh.

The path to the script can be relative to a script root.

Live Editing for IDE Users

If using an IDE you can get code completion by adding the following lines at the beginning of your script:

import com.onresolve.jira.groovy.user.FieldBehaviours
import groovy.transform.BaseScript

@BaseScript FieldBehaviours fieldBehaviours