Event visibility
Any event in Wild Apricot can be 'visible' or 'invisible'. Invisible events are only accessible to administrators - so you can keep any event as an invisible 'draft' until you are ready to publish it.
Event visibility is changed by editing it - use 'Visible' checkbox to show or hide it:

If you set it to be invisible, it will be marked as such on event details:

on event list administration page:

and on the webpage with the list of events when accessed by the administrator:

Note that this last page when viewed by members and public visitors will NOT show hidden events.
Would be nice to allow visibility of who is attending.