The context menu is keyboard accessible.
Press Shift+F10 or the Applications key to open the context menu on the edit field. Press the Up and Down Arrow keys to move focus between the menu options. Press the Left and Right Arrow keys to open or close submenus. Press any letter or number to jump to a menu item starting with that character or digit. Press Enter to activate a menu option. Press Escape to close the currently open menu. Press Tab to close the menu and all submenus. Mouse users can right click on the edit field to open the menu as usual. Mouse users can cancel and close the menu by clicking anywhere else on the page. On a touch screen, touch the edit field and hold for about 2.5 seconds then release to open the menu, tap a menu item to activate it, or tap anywhere else on the page to cancel and close the menu.