I'm afraid this is currently not possible - the only way of setting this will be directly via UI.
I've created a new feature request for this which you can see at https://jira.atlassian.com/browse/FE-5718 - please feel free to add any comments to it. Also consider voting for it and adding yourself as a watcher to track its progress directly. You may refer to Atlassian's Policy about the implementation of new features.
Over the next several weeks we'll be sharing some of our Getting Started guides here in the community. Throughout this series of posts, we'd love to hear from customers and non-customers ab...
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