We are working with a company who already use JIRA and have an on premise version of the software. If we were to also purchase JIRA on premise, could we link the two instances so that we could create issues in our instance and have them appear in the other company's instance? We want to avoid re-keying of issues into each instance and also benefit from the comments and status updates happening in both systems so that they both have the most current content. Is this possible?