1) It would be very helpful if "Create Common Events" would give us a selectable checkbox list of events so we could have the option of only creating the specific events we need.
2) When adding an Event, it would be nice if the subject and message were auto-populated with an example. This way we would not have to spend time testing and trying to figure out which variables are relevant to a specific event like I did here. It would give us a good base to start creating an event like the Common Events do.
3) Add the option to "Clone" (or "Copy") an event. This would save time when creating events that include Event Filters, and save us from having to do a lot of copying and pasting subject, message, description, etc.
4) Give us the option to create "Custom Events" so that we can create often-used templates. (e.g., I frequently create a "File Uploaded" event and repeatedly having to re-create it is a slight annoyance as the only differences are recipient e-mail address and event filter. Would be easier if I was able to make the template I use a "Custom Event" -- or simply Clone another event I created previously).