If i use an external viewer to show the histogram (API/HTML static page), i was expecting be able to click on 'Charts' drop-drown button and make another histogram or scatter plot.
It's not possible. Is fine for now but once i clicked, there is no way i can go back to the histogram displayed previously.
We should fix that part adding at least a 'go back' button. What do you think?

Go to demo page:

http://localhost:8080/firefly/demo/ffapi-highlevel-test.html

and click on 'show histogram'. A viewer will open a new tab. Click then on the 'Charts' to see the flow described above.