We are currently running a Comprehensive campaign, and many of our large pledge donors are setting up recurring payments for their plan as a way to set it and forget it. Unfortunately, we discovered that there is no way in RENXT to link that recurring payment to their existing Pledge. I think it would be best to allow multiple recurring gifts per user, in case one has a standing Annual Fund recurring payment in place and wishes to set up a separate recurring payment to link to their pledge.