Hey all, I'm chiming in from Support here 
@jacks, you can use (and customize) the plot's toolbar with a custom chart component.
You'll encounter some limitations to the functionality of the toolbar since the custom component runs in a sandboxed iframe. For instance, 'Download plot as a png' won't work.
@dusty-campanella-maxa you can download a custom chart component with the workaround I laid out in this community post. I hope that helps with your use case!