I had to use ctrl-z many times in my editor to revert from a version where I thought elision was working and then for some reason, it just didn't work anymore.
Early testers' feedback made it very obvious people expect standard shortcuts such as Ctrl-Z, Ctrl-C etc to be implemented, and rightfully so.
早期测试者的反馈表明，人们期望提供标准快捷键，比如Ctrl-Z、Ctrl-C等等，这是正当的要求。
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If you make a mistake, you can use the usual keyboard shortcuts -- ctrl+z will undo your previous action while the backspace key will remove the element from the page.