public HighFunction getHighFunction(int i) { // Get the i'th function id in the layout
		int numfunc = docroot.numChildren();
		if ((i < 0) || (i >= numfunc)) {
			return null;
		}
		if (docroot.Child(i) instanceof ClangFunction) {
			return ((ClangFunction) docroot.Child(i)).getHighFunction();
		}
		return null;
	}
Update to the current Decompiler display options
Ghidra/Features/Decompiler/src/main/java/ghidra/app/decompiler/component/ClangLayoutController.java