Gmail keyboard shortcut to “expand all”?

Question

Is there a keyboard shortcut to "Expand all" emails in a conversation after having navigated via j or k? Typing Enter after j or k doesn't do much.

Answer 1

As far as I know there isn't a keyboard shortcut for this.

You can use n (Next message) or p (previous message) to navigate up and down the conversation tree. You can then use o or Enter to expand an individual message that is part of a conversation.

_{Resource: Gmail Keyboard Shortcuts}