There are a number of steps to creating a new publisher package, and these have articles of their own.
Go to your Institution page and click "+ New Package."
Select what kind of publisher you want to add (currently Elsevier, Wiley, Springer Nature, SAGE, and Taylor & Francis are supported; all publishers will be supported by mid-2021), and give your publisher a name. Click "OK" and wait for the new publisher to be created.
Click on your new publisher, then select the "Setup" tab.
Upload the COUNTER reports for that publisher (there's a separate article on how to do this, with way more details).
Select the Forecasts tab, and click "+ New Scenario." Then make sure all the parameters are set to your liking.
That's all that is required! You're ready to explore the impact of cancellation on your costs and fulfillment.
We also recommend that you: