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HelloI removed Edit menu from my app. So I can't use copy/paste/selectall/undo/redo in NSTextField and NSTextView.I used examples from internet to implement copy/paste/selectall/undo/redo in NSTextField/NSTextView.private let commandKey = NSEvent.ModifierFlags.command.rawValue private let commandShiftKey = NSEvent.ModifierFlags.command.rawValue | NSEvent.ModifierFlags.shift.rawValue override func performKeyEquivalent(with event: NSEvent) -> Bool { if event.type == NSEvent.EventType.keyDown { if (event.modifierFlags.rawValue & NSEvent.ModifierFlags.deviceIndependentFlagsMask.rawValue) == commandKey { switch event.charactersIgnoringModifiers! { case "x": if NSApp.sendAction(#selector(NSText.cut(_:)), to:nil, from:self) { return true } case "c": if NSApp.sendAction(#selector(NSText.copy(_:)), to:nil, from:self) { return true } case "v": if NSApp.sendAction(#selector(NSText.paste(_:)), to:nil, from:self) { return true } case "z": if NSApp.sendAction(Selector(("undo:")), to:nil, from:self) { return true } case "a": if NSApp.sendAction(#selector(NSStandardKeyBindingResponding.selectAll(_:)), to:nil, from:self) { return true } default: break } } else if (event.modifierFlags.rawValue & NSEvent.ModifierFlags.deviceIndependentFlagsMask.rawValue) == commandShiftKey { if event.charactersIgnoringModifiers == "Z" { if NSApp.sendAction(Selector(("redo:")), to: nil, from: self) { return true } } } } return super.performKeyEquivalent(with: event) }But problem .. if I write some text and do undo .. All text is removed at once. I want to make undo action natural like in all Cocoa apps. Just one or few characters are removed if I do undo. Now all text is removed.Any suggestions how fix this problem ?Or maybe I need again add Edit menu to better support human interface guidelines?