@amunger 我们可能需要一个设计/提案，说明我们应该在辅助功能帮助对话框中嵌入什么内容。目前我们有通用的快捷键，上周和JooYoung讨论的一个想法是包括内核状态(如变量),以及导航到新变量视图的命令(我们可能应该在辅助功能模式下默认启用)。

当前状态：

The notebook view is a collection of code and markdown cells. Code cells can be executed and will produce output directly below the cell.
The Edit Cell command (Enter) will focus on the cell input.
The Quit Edit command (Escape) will set focus on the cell container. The default (Escape) key may need to be pressed twice first exit the virtual cursor if active.
The Focus Output command (Control+DownArrow) will set focus in the cell's output.
The Focus Next Cell Editor command (Control+Alt+PageDown) will set focus in the next cell's editor.
The Focus Previous Cell Editor command (Control+Alt+PageUp) will set focus in the previous cell's editor.
The up and down arrows will also move focus between cells while focused on the outer cell container.
The Execute Cell command (Control+Enter) executes the cell that currently has focus.
The Insert Cell Above/Below commands will create new empty code cells
The Change Cell to Code/Markdown commands are used to switch between cell types.
Disable accessibility verbosity for this feature (Alt+F6).
Exit this dialog (Escape).