mean that someone is actually working on it, or that it is planned someday = I just use the source code for the foreseeable future (or maybe if you have some internal docs available)?

It is a work that never progressed but we should revisit it.

In the meantime, you can have a look at the ESUG paper (attached here).

Since I am not familiar with this technology, it's really hard to understand without an overview of the concepts behind it / tutorials / whatever. But the paper looks promising, I'll go through it tomorrow.

Thanks,
Peter