编辑
这里有编辑公式用的命令。除了常规命令，如内容复制外，您还能找到专为 LibreOffice Math 设计的命令，如查找占位符或在查找错误时的支持功能。
Reverses the last command or the last entry you typed. To select the command that you want to reverse, click the arrow next to the Undo icon on the Standard bar.
Reverses the action of the last Undo command. To select the Undo step that you want to reverse, click the arrow next to the Redo icon on the Standard bar.
在光标的位置插入剪贴板的内容，并替换任何选定的文本或对象。
Selects the entire content of the current file, frame, or text object.