What has happened to snooze in mountain lion?

I know this might look trivial, but my life runs on alerts and reminders. In OS X 10.6 (Leopard) alerts would popup with an option to set the snooze for differnt time periods. This was very useful as I could dismiss certain reminders for hours, days or weeks. Mountain Lion seems to have lost this very functionality.

I've looked in settings, but can see no way to add this functionality back in. If it is possible can someone advise how to do it. If it's not possible, can Apple please look at adding it back in. All the snoose button needs is a little drop down with snooze delay options.

Thanks