Grad students needing to manipulate Gantt Charts

Hi There,

We are a group of graduate students looking to utilize plotly in order to visualize the SQL relational database data that we are moving into Python for visualization. We were looking to utilize Gantt Charts but we discovered that we need to be able to edit the graphic in more detail than what the code allows. Is there a way to somehow edit the Gantt Chart code in more detail? Or is there a script somewhere out in the world that would allow us to do so?
Additionally, is there a way to specifically add photos to the Gantt Charts themselves?

Thank you very much for your time and assistance!