Thank you! I'm assuming I just edit the file ProvisionSample.exe.config and should be good to go?
What I have literally *just* finished doing is configuring a report manually, using postman to construct the requests, following this guide: https://azure.microsoft.com/en-us/documentation/articles/power-bi-embedded-iframe/
Good to know I'll never have to do that again! Hopefully in the future this kind of thing can be done via the UI.
Thanks again.