Erase / Undo - Redo

Erase

Erase the selected entities from the model.

Undo

Undo the last drawing or editing commands performed. SketchUp allows you to undo all operations you have performed, one at a time, to the state at which you saved your file. The number of possible sequential Undo commands is limited to 100 steps.

Keyboard Shortcut: Alt+Backspace or Ctrl+Z

Redo

The Redo menu item returns the last undo to its previous state.

Keyboard Shortcut: Ctrl+Y