Simple, In game path planner.

[Anim]

Can you please allow a path planner in game so I can plan my build. Not talking about PoB here.

e.g.
Open the Path tree with P
Click on a "Planner" button. Now I can path to nodes which shows as an overlay over my actual unassigned tree.

Now when playing I can see where I am at as I spend points, and also a fainter (gradient fade) line where I planned to go in the same order that I drew it in "Planner" mode.

[AFC_HIGHBURY]

+1 would be a good addition

[Mandarin |Sky|]

They talked about this at one point, I'd assume it will come out eventually.