Keyboard-only users who edit text using the TinyMCE menu but are unfamiliar with it can have difficulty exploring its features unless they know the keyboard shortcuts for the TinyMCE editor beforehand.

For example, once they're in the editor, there's no obvious way to go to the menu via keyboard (It's Alt+F9 for Windows/Linux or Option+F9 for MacOS). Pressing Alt+0 displays a modal dialogue that shows the Help dialogue for the editor, which includes its keyboard shortcuts.

It might be helpful to provide a button to display the editor's Help dialogue right before the editor. It can behave similarly to a skip link, where it is visually hidden until the user tabs into it, where it will be displayed and let the user know that pressing it will show the Help dialogue.

We can also add a keyboard shortcut button to display the dialogue on the editor's status bar.