- On the main menu, choose .
- Press Ctrl+Z or Alt+BackspaceCtrl+Z or Alt+BackspaceCtrl+Z or Alt+BackspaceCtrl+Z or Alt+BackspaceCtrl+Shift+Minus or Ctrl+SlashCtrl+ZCtrl+Z or Alt+BackspaceCtrl+ZMeta+ZMeta ZMeta ZMeta ZMeta Z.
- On the main menu, choose .
- Press Ctrl+Shift+Z or Alt+Shift+BackspaceCtrl+Shift+Z or Alt+Shift+BackspaceCtrl+Shift+Z or Alt+Shift+BackspaceCtrl+Shift+Z or Alt+Shift+BackspaceCtrl+Shift+Z or Alt+Shift+MinusCtrl+Y or Ctrl+Shift+ZCtrl+Shift+Z, Alt+Shift+Backspace or Ctrl+YCtrl+YMeta+Shift+Z or Alt+Shift+BackspaceMeta Shift Z or Alt Shift BackspaceMeta Shift Z or Alt Shift BackspaceMeta Shift ZMeta Shift Z or Alt Shift Backspace.
Tip
RubyMine expands the undo and redo mechanism to complex operations, such as reformatting or refactoring source code, creating or deleting files. When you undo or redo a complex operation, RubyMine requests on your confirmation.

