add exception dates globally to all nodes of a content type

I would like to add exception dates globally to all nodes of a repeating-date-field-using content type.

I am trying to figure out how to do this programmatically and came across the comment at http://drupal.org/node/560054#comment-3603452 and the suggestion that a feature request be submitted. I didn't see one yet, so here it is.

A typical use case would be:

- a calendar should by default keep repeating events from being scheduled on holidays without manual entry for exceptions on every event

I think a simple approach would be to allow the content type form to set default set exceptions to be included at node creation.

You can accomplish this with the Node Clone module (create a dummy node, enter all the exceptions, then clone it for every node you want to create), but it would be nice to see it handled in Date.

A more comprehensive approach would be to have some kind of Date API bulk functions module that could add exceptions, modify 'until' dates and otherwise allow an existing calendar to be extended without a lot of data entry.

Thanks for looking at this.