I have successfully installed the Credit Referral system on my server. The instruction says: "- To define events for currencies go to Admin > Credits > Create Event > Buy referral times / Referral Award. (Or import XML\brivium-credits-events.xml file)" But when I go to Admin > Credits, I do not see the button for "Create Event". How do I import XML\brivium-credits-events.xml file? Thanks.