Steam Link

Steam Link

How do you use the arrow keys?
So, I'm using Steam link for the first time. I tried with Toontown Rewritten, and it worked pretty well, with one tiny issue. I can't move. If you know Toontown, you know that you move your Toon with the arrow keys on your keyboard. I don't know how to use the arrow keys with the Steam Link app... :[ Can someone tell me how, please?