<oXygen/> provides user actions common in any text editor:
Ctrl+Z) or the toolbar button to reverse a maximum of 100 editing actions to return to the preceding state. Complex operations like "Replace All", "Indent selection", etc are treated as a single undo event.
→ (Ctrl+Y for Windows, Ctrl+Shift+Z for Mac OSX and Linux) or the toolbar button to recreate a maximum of 100 editing actions that were undone by the Undo function.
→ (