@87s I love your avatar! Looks like a deranged photographer, which is not at all dissimilar to how I feel sometimes 
Move with arrow keys, followed by <Enter> should work.
Alternatively you have F3/F4. Make sure your keyboard is not in some kind of ‘media-keys’ mode which replaces the functionality of those keys globally. Especially on laptops this is common (look for a Fn function on your keyboard).