Noticed that export to csv and xls now appears for certain types of charts (facet chart, pie chart, possibly others). This currently exposes some fields that are confusing to our end user (for instance, some of our IDs are guids, which are meaningless to them). Is there a way to toggle what types of exports are available in the built-in toolbar (for instance, if we only wanted to allow endusers to export to pdf or png)? We could build this ourselves using the api but it would be helpful if it was a built in setting.