AAs you've picked for a class that isn't one of your current 3 — still fully part of this build and still counted in Points Planned above, just not trainable (or shown in the tree) until you swap that class back in.
The order you've picked things in, for planning a leveling path. Drag a row to reorder it (or use the arrows) — ranks of the same AA always stay in order, the drop line turns amber if that spot would leave the row's own prerequisite unmet, and a ⚠ means a step's prerequisite hasn't been reached yet at that point in the sequence.