I recently had a client who has multiple pages from which they would like to submit the checkout form to process at First Data using their heritage LinkPoint Connect system at https://www.linkpointcentral.com/lpc/servlet/lppay. The form under Administration > Connect Settings provides a field "Submission Form URL" that seems to only allow a single URL. However there is a trick! If you want to add multiple URLs, you can enter them into that tiny text field, separated by spaces. Voila! Now you can submit payment forms from each URL you list. Hope this saves someone else some time!
Setting up First Data Connect (LinkPoint Connect) Payment Gateway for Multiple Checkout Pages