Hi Ralf, certainly I understand that being able to do custom plug-ins and extensions would help with a lot of stuff.

I do want to do it eventually, it's just a matter of limited time.

There isn't enough time to do every single thing especially for the 1.0 version, so some things have to be prioritized over others. For right now I've put basic functionality and documentation for just running the current feature set of MoI as a higher priority than setting up a full extension mechanism, especially because including full documentation and technical support for doing extensions will take a lot of time.

- Michael