Hi @mdausmann-cmri,
Yeah, that example is out of date. Thanks for pointing it out. Could you raise an issue on the documentation repo here at https://github.com/plotly/documentation/tree/source-design-merge ?
And, if you’re so inclined a PR with the notebook fixed would be appreciated!
Also, your clustermap solution sounds nice. I’d recommend making it a gist (https://gist.github.com/) and then creating a new forum thread with the link and some examples and screenshots. This could be a nice way to get some feedback from the community and even start down the path towards making it a figure factory.
Thanks,
-Jon