public void addToModel(E item) {
		DefaultComboBoxModel<E> model = (DefaultComboBoxModel<E>) getModel();
		model.addElement(item);
	}
Adds the given item to the combobox's data model.
@param item the item to add
Ghidra/Framework/Docking/src/main/java/docking/widgets/combobox/GhidraComboBox.java