How can use Khadas remote in YouTube app?

I bought Khadas remote with board. But I can’t use remote in YouTube app. If use cursor it is can hide when when use and don’t convenience. With button can’t move between items on interface. Or I should install Android TV firmware?

Sorry, I can’t understand what you said.
What version of firmware do you use? Take pictures with the remote control. Because I’m not sure which one you use.