This is a suggestion which would apply to several of your themes.
Is it feasible to include a way to download an event as an ics format file?
e.g. visitors could click on a calender icon and paste / insert the event as an appointment into thier choice of calendar / appointmemt scheduler.
A related feature would be for the site admin to be able import events into wordpress from an ics file.
Sounds feasible, though not sure about the value of the per event idea. Would visitors to your site really know what to do with it? Being able to export the whole calendar in ical format into say Google was another idea.
We are hoping to add to the event features, though are aware that there are many event plugins around most of which have way too many options and features for the average user to cope with. We are also looking at producing a plugin version to use with other themes – but to make it different from all the others it won’t be loaded with options and non-essential features!