I am using grid with several charts streaming data updated thorugh ColumnDataSources. I am very much satisfied with how Bokeh scales the display (X and Y) according to the displayed content.
I am willing to extend the rollover period, but without displaying the whole history by default - only the newer right side of the data to be displayed. The extended historical data will be visible only when zooming out with tools (and clicking on reset - will hide it again).
I tried playing with x_range, options, but without too much success