In a question of type slider (just one statement with 9 scale points) I would like to make the slider controllable by using the left and right arrow keys. Finally, the answer should be submitted by pressing the enter or return key. While I have a clue how to do the submitting (https://stackoverflow.com/questions/39534582/qualtrics-pressing-enter-key-to-emulate-continue-button), I don't know how to accomplish controlling the slider by pressing keys.