Import project from JIRA-5.2.11 to JIRA-5.2.11+Greenhopper-6.2 (or enable Greenhopper on it)

[Andrej Kvasnica]

Hello,

I've got project in JIRA-5.2.11 and I want to start using Greenhopper with that project data. Thus I need to enable Greenhopper on that project OR import project as Greenhopper enabled project.

Is it even possible to do so?