ARIA Authoring Practices Guide provide recommendations for accessible experiences for interactive elements. the jupyter menu bars already abide the menu bar pattern that allows for arrow key navigation around the menus. as a result, only one element from the menu bar shows in the tab ordering.

the preceding image indicates and #6800 indicate 20 tabs are needed to reach a cell since the toolbars do not abide the suggested APG toolbar example. these tab counts include the notebook and cell level toolbars. using the toolbar pattern we could drastically reduce the effort needed to navigate to cells. the recommended toolbar pattern allows focus on the last active element with arrow navigation to other elements.

is this a pattern that jupyter could support?