Separate URLs for bare iframe-able dashboards

It would be nice to have separate URLs for different components - for example, I would like to be able to view just the tensorboard scalar graphs and not the rest of tensorboard in an iframe; or, I would like to see the layers visualization as a separate iframe. Currently, it looks like this is not possible. I would like to be able to view the components without the rest of the tensorboard UI.

It looks like there is a way to do this for tensorflow graphs, but it is based on a private webservice "https://tensorboard.appspot.com/tf-graph-basic.build.html":

https://stackoverflow.com/questions/38189119/simple-way-to-visualize-a-tensorflow-graph-in-jupyter
https://blog.jakuba.net/2017/05/30/tensorflow-visualization.html

But I would like to be able to do this for other components, and even for tensorflow graphs it would be better to have a separate API to the local tensorboard instead of calling the webservice.

No files, tests, or concrete entry points are named. Start by tracing how the local TensorBoard serves and selects dashboard components, then determine how separate URLs could load the scalar graphs, layers visualization, and TensorFlow graphs without the full UI; done means each requested component works independently in an iframe.