I have a list of courses that I publish as an ICS file and have a Google Calendar that uses its URL as a source. This works very well.
What I would like to be able to do is take a standard Google Calendar and be able to add a URL as an input so that the single calendar will show my own events I create and the events from the ICS URL.
Does anyone know if there is a way to do this, I couldn't see an obvious way?