All applications should have cat-specific shortcuts, for when a cat is on your arm and you have to work one-handed.
On the mastodon #webClient in advanced (multi column) interface, I can scroll within the current column that has focus with keyboard up/down arrows. That's helpful.
BUT is there a keyboard shortcut to move to the next column to the left or right? I can click a toot to get focus there, but the mouse is too far away when I'm pinned by the cat.