Hi there Jim,
Thanks for getting in touch and for the detailed description of what you are trying to achieve!
Per default this is not possible, all new events have a details (single event) page. But maybe if you assign a special category to to these ‘save the date’ events and customize the views a bit it can be possible.
Just to be sure, you wan these events to show in the calendar front-end but eliminate the link to enter the single event page, right? If this is the case, which views are you using in the calendar front-end?
On the other hand if this is just a back-end thing, then you can create these events as Drafts and publish them to the site once they are ready to go.
Can I create a calendar entry that simply saves the date without having to create an Event page to go with it?
The process in the back-end, the event creation will be the same! Not sure if you are looking for a different workflow on this side as well.
Please let me know about it,
Best,
Nico