When picking a perk to level up, I have to click once per constellation if I want to change which skill I want a perk in. If I want to go to a skill a few constellations away, it is burdensome to click and wait for the animation to slide the constellations over and then click again.
Once within a constellation, picking which branch of the tree you navigate down seems finicky as well. Navigating back down the tree to the base or out of the constellation altogether is just as cumbersome.
Is there some set of controls for navigating this screen that I am unaware of? The arrow keys on the keyboard don't seem to do anything, like they do in other menus. Is there something else?