Agreed! Thanks very much!

Same issue here. On MacOS/Sierra, Unity 5.5.1f1, SF 1.34. I'm using the touchpad on a MacBook pro (retina), and can zoom in the node view using 2 fingers (just like in Unity), but can't scroll the left side panel. No scroll bar appears when the content overflows, unlike in Unity's inspector view which does show a scrollbar (and allow to scroll).