Open Keyboard shortcuts cheatsheet under "Help" in Right Pane (or be able to add it to Contents or Favorites)

As a new user, it would be helpful to be able to have the Shortcuts cheat-sheet open in the right-side pane while working in the central pane for quick reference as I learn the shortcuts. As it’s set up now, clicking on the “Shortcuts” link under “Help” only opens it in the central pane.