When opening a library, the usability of the right sidebar can improve with respect to clarity. The point is that at first glance, the user can not distinguish that the right ellipsis button contains different options than when clicking directly on the option shown on the left. To make the usability more clear, an outline could be added around the ellipsis button (giving the idea of ​​a button) and doing the same thing with the icon on the left, referring to the corresponding option.