The Chart Builder is a proof-of-concept app to understand the feasibility of using a CSV file (or SPARQL query) to generate and customise a chart or data visualisation
This can be useful for highlighting data points that are separate to the main series
Note that Plotly automatically adds padding to the left and right of the series when marker dots are selected. This behaviour is discussed here: https://github.com/plotly/plotly.js/issues/1876