I think you've answered your own question. The documentation you've linked to is the best place to start, and there is no more "portable" way available, unless you write some extra code to work off the name of the field (which is risky because you can change the name of a field very easily)
We're looking for participants for a workshop at Atlassian! We need Jira admins who have interesting custom workflows, issue views, or boards. Think you have a story to sha...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG