https://ld246.com/article/1664100427683

• 新建行列后将光标移动到对应的新单元格中

  表格后无内容时，按右键需新建空块

  Enter 改为光标换到下一行对应的单元格

  Shift+Enter 改为换行

  ArrowDown/ArrowUp 遇到行内元素或多行元素时光标跳转错误
  To pick up a draggable item, press the space bar. While dragging, use the arrow keys to move the item. Press space again to drop the item in its new position, or press escape to cancel.