Hi,
I apologise for my poor coding skills but I do not know how to put Rmd code in Github...
I have tried to create a scollama_sidebar with a trelliscope plot on car dataset using the following RMD file in this zip folder
RollDownTest.zip
The good news is that it is able to knit the script.

The bad news I think the side bar is too small to see the diagram

Is there a way to increase the size of the sidebar ?