It does not have the ability to delete an event, to delete a field in the registration form field, or to publish/unpublish events.
I hope the developers can make this better.
Thanks a lot for your efforts =)
Saved me a lot of work changing the "TARGET" tag.
Suddenly, my Joomla backend stopped working just to figure out it was a problem cause by the jQuery of the extension and I had to sadly disable it!
I encourage fixing it up and call people to use it =)
You can disable the plugin in the joomla backend by changing the plugin params. It is pretty simple. Just do the following
1. Log into backend
2. Go to plugin manager
3. Open the plugin ext_blank
4. Set Enable in backend to no