Question
How to use the methods in jlink ui Tree

How to insert Item to a Tree, and form a tree structure by setting the parent/children relationship of treeItems?
What does ItemPositionData mean?
Can some one show me some code.

How to insert Item to a Tree, and form a tree structure by setting the parent/children relationship of treeItems?
What does ItemPositionData mean?
Can some one show me some code.
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