Hello,
I’m not sure if I am in the correct place to suggest ideas to the Trello app, I’m sorry if didn’t. My suggestion here is the possibility of navigating between columns via shortcut, in my personal option, that will be something amazing to complete the navigation we already have between cards. We can navigate to the next card and previous one via keyboard arrows, which is okay, but when we hit the end of the current column (or hit the start) that navigation stops, so my suggestion here is to go to the next column instead of stops navigation or maybe implement a new shortcut combination for us to go to the next column to start that cards navigation again. That way we will be able to navigate over the entire board with no get it out of the keyboard.
Thanks.