Hi, plot linking between multiple plots is a really neat feature in bokeh and quite straight forward.
However in my usecase i have multiple plots where each plot is embedded on the html site individually.
This mean that i do Bokeh.embed.embed_item(bokehplot, "plotlabel"); one time for each plot.
Is it somehow possible to link 2 or more plots across different embeds like this somehow? Possibly using some callback stored in window object?
Nobody has any idea about this ? 
I cannot help but we might have a related issue, see here: Serving a bokeh application within django: How to freely place individual components?
Seems like you could achieve what you want if you where able to freely place components from a single server document? Our workaround for the time being is to provide our whole dashboard via bokeh serve in directory format.
In order to be linked by Bokeh, all the objects have to be in the same Document. You can use the components function to embed multiple items from a single document in a Jinja template. There’s almost certainly some way to do things starting from BokehJS APIs but that usage scenario is definitely much newer and less well-developed (or not at all).