I watched your Plugin tutorial and it was a nice intro. :) Construct 2 seems very easy to extend that way!
Cowdozer
Thanks! Yes, C2's extensibility through plugins is one of its attractive features. I haven't used a regex in any of my plugins, though - yet ;)
briermay
Another of C2's attractive features is the way in which, as GeometriX says, it will always use the instance of an object that is picked by the condition of an event - without any more work on your part. (Don't be misled by the earlier discussion in this thread, which revolved around a rather esoteric problem.)