Hey, thanks for making this! I use Construct 2 quite a lot and bought one of those overpriced array editors you mentioned. I've come to appreciate some of the more advanced features it has, but it has terrible UI and likes to crash when I do the simplest things (like pressing Ctrl+V...). Really not the experience I'd expect considering the price.
Also, props for making your C2 tool using C2, I love it.