void removeFromView(TreePath path) {
		viewList.remove(path);
		ProgramNode node = (ProgramNode) path.getLastPathComponent();
		node.setInView(false);
		if (node == root || (node != root && node.getParent() != null)) {
			reloadNode(node);
		}
	}
Set the cursor and force a repaint on me. Called by the paste operations
that could potentially take a long time. The cursor is reset in the
domain object change listener when the event comes in for the group
that was last "pasted."

@param busy true to use the busy cursor
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/programtree/ProgramDnDTree.java