In Greenhopper 6.0, it seems that the way to set the "Global Rank" is to move the JIRAs up or down in the plan section. I have over 1000 JIRA in our Backlog, already sorted by Priority and another custom field (scale 1 to 10 within each priority).
I want to set the Rank to match this sorting. How can I do this without spending hours dragging and dropping 1000+ JIRAs?