Tryed it out a bit and with the attachments you'll see it will display some info.
It ain't working correctly for the moment and will take time to adjust it but it's duable.
- parameters need to be set
- category info has to be added/changed.
The plugin is looking for a catsid field within the events-table
but we're using multi-cat at the moment
Did try it out with J3+ but adapting it later to J2.5 is no problem.
there is also an editores xtd-plugin, that can be used to select events just like the way it's done by selecting articles but that one should be tested out too.