I've added a race event on Garmin Connect's Calendar (Desktop). The specific event was available in the search, including a route.
The route can then be synced to my watch, but there is no way of viewing or editing the route on desktop to e.g. create a PacePro plan. Any ideas?
You probably found the solution by now but anyway. Adding an event to your calendar basically only allows you to define a goal. It does not appear to be possible to add the PacePro parts from there initially 
If you go to Courses, find the course for your event, add it to your favourites. If it isn't there, se if the event has a course file on their page you can use (otherwise you'll have to draw it up yourself). You can then add a PacePro strategy for it by clicking on the course and then clicking Create PacePro Strategy, or you can go to Training >PacePro Pacing Strategies >Create PacePro strategy > Favourites, pick the course and set your pacing elements. (Bit of a palaver!). Once you save a strategy, it is then actually shown in the popup from the Calendar entry, and you can edit it from the jump there and even add another pacing strategy for the same event from there!
But you can't set a PacePro strategy directly from the calendar entry at the outset 
which is rather ludicrous and very impracttical.
