If you click on "Example citations" -> "Citation x", then "Advanced", you can't scroll down in order to see the advanced option (add new reference). There's no scrollbar unless you close the "Edit Citation x" pane and open it again or if you resize the pane before clicking on "Advanced". A scrollbar should appear when Advanced is clicked.
(Firefox and Chrome)
If you click on "Example citations" -> "Citation x", then "Advanced", you can't scroll down in order to see the advanced option (add new reference). There's no scrollbar unless you close the "Edit Citation x" pane and open it again or if you resize the pane before clicking on "Advanced". A scrollbar should appear when Advanced is clicked. (Firefox and Chrome)