Multi Event Filter
Multi Event Filter utilizes and extends Apple's Data Detectors, giving access to event information from applications which do not support them directly.
Add Multi Event Filter to your Applications folder. Once you open the application the first time it adds an "Add events to Calendar" Service to your existing applications' Services menu.
Multi Event Filter provides comprehensive keyboard shortcuts to allow quick edit and entry of multiple events.
Multi Event Filter is $3 to download from the Mac App Store.
Update details
1.1 (15 May 2014)
Added option to open selected date to view in Calendar application.
1.0 (15 Apr 2014)
Initial Mac App Store release.
0.1 (7 Feb 2014)
Initial alpha 14 day demo release.
Let me know through my website's contact form if you have suggestions or questions about this application. I am also looking for translators.