Click once to desire, again to switch to undesired, and again to clear. Right click also clears.

In the atlas tree, a mastery icon clicks all notables of that content type, with a few exceptions.

When you want it to take a different path than it does, prioritise undesiring nodes you don't want over desiring nodes. Desired nodes have an escalating performance impact, undesired nodes do not.

You can change trees in the bottom left. You can also pause the pathfinding, great for big trees where it starts to lag.

The site might not work well without hardware acceleration enabled. It also has performance issues on some phones and mac devices.