Installing Orchestartor for Azure from Azure portal - possible to apply an existing license?

So we are troubleshooting some connectivity issues in Azure with Orchestrator, and wanted to try a fresh, out of the box install to see if there was something going on with the installations scripts. From the Azure portal, you can search for “Orchestrator”, click “Create” and it walks you through the steps of getting it set up. However, at the end you must click “Buy”, and we’ve already bought an Orchestartor license. Is there a way around that?