I have developed a plugin to use IG with Zorro, and today I'm releasing the initial version. You can find instructions on how to install here: https://github.com/dan-lind/igzplugin
Please let me now of any issues you encounter, problems with the documentation, or other questions that you might have. I'll answer as fast as I can :-)
As pointed out, this is the first release. Don't expect it to be free of bugs just yet :-)