Linking pages to calendar events is nice. But a deeper integration (like with jira) would be really useful for us.

We would love to have a macro to embed on pages (and page templates!), which automatically creates calendar events and synchronizes them. Of course the macro would have to ask for dates and event type.

Now, the events and pages get out of sync very easy. And there is a high potential, that no events are created at all (because we create the page with a template). And a calender, which you can't rely on, is kinda dangerous.