@Override
		public void keyPressed(KeyEvent e) {

			if (e.isConsumed()) {
				return;
			}

			int code = e.getKeyCode();
			if (code == KeyEvent.VK_UP) {
				// We need to run later due to focusLost() listener on the text field that will 
				// interfere with the selected state of our newly selected button
				previousComponent.requestFocusInWindow();
				Swing.runLater(() -> previousComponent.setSelected(true));
				e.consume();
			}
			else if (code == KeyEvent.VK_DOWN) {
				// We need to run later due to focusLost() listener on the text field that will 
				// interfere with the selected state of our newly selected button
				nextComponent.requestFocusInWindow();
				Swing.runLater(() -> nextComponent.setSelected(true));
				e.consume();
			}
		}
A simple class that allows clients to focus other components when the up or down arrows keys
are pressed
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/compositeeditor/CompEditorPanel.java