Certain actions, graph types, and navigation elements now listen for keyboard shortcuts. To learn these shortcuts, you can access the keyboard shortcut pop-up from the help menu or from the keyboard icon in the bottom right.
Once you click the keyboard shortcuts, you can view which lists all the shortcuts and their corresponding action.
At the bottom of this support article, you can also find a PDF to download and print in case you want to have the shortcut keys on hand as you work with data.