One of the organisations I work with runs perhaps 70 events or more over the course of a year. Many of these are invitation only, so while we use Civi to handle these events most of them are set as active, but not public, so they don't appear in our main iCal feed, which we use to promote public-facing events.
I'm looking at using the Private iCal extension which gives me the ability to publish feed URLs for events that are not public and filtered by type, which is great. But what I ideally want to do is include in the iCal entry the content of a customer field that I've created for Events.
Any idea how I might go about this?