I’d like to test this.
Maybe it’s not just about the main node — the tree, even if it’s expanded, shouldn’t expand unexpanded children if the node selected in the 2D editor is a child of a child of the tree’s main node.

I’m not sure if what I mean is clear — that is, if the option isn’t enabled, the tree won’t expand beyond what’s already expanded.

If the option is checked, the tree will expand until it reaches the node selected in the 2D editor.

I’d like to test this. Maybe it’s not just about the main node — the tree, even if it’s expanded, shouldn’t expand unexpanded children if the node selected in the 2D editor is a child of a child of the tree’s main node.

I’m not sure if what I mean is clear — that is, if the option isn’t enabled, the tree won’t expand beyond what’s already expanded.

If the option is checked, the tree will expand until it reaches the node selected in the 2D editor.

@Torguen

My description makes some confusion. The original function tried to expand tree node from selected node to all of parents, but only forgot to expand root node. So my patch fixed the last part - root node, to fix this issue.

Thanks! Congratulations on your first merged contribution! 🎉