# Edit

- **Undo**: Reverts the last action performed. Shortcut: `Ctrl+Z`.
- **Redo**: Restores the last undone action. Shortcut: `Ctrl+A`.
- **[Insert Event](https://docs.powerkaraoke.com/books/ai-karaoke-video-creator-user-manual/page/using-events)...**: Adds events (e.g., Clear Screen, Set Background) to enhance visual effects.
- **Remove All Events**: Deletes all events added to the project.
- **Shift Labels...**: Moves the timeline labels for better alignment with the audio track.
- **Paste Lyrics**: Inserts lyrics copied to the clipboard. Shortcut: `Ctrl+V`.
- **[Duet Wizard](https://docs.powerkaraoke.com/books/ai-karaoke-video-creator-user-manual/page/creating-duets)...**: Assigns lyrics to multiple singers for duet synchronization.
- **Automatic Countdowns...**: Inserts countdowns to prepare singers for the upcoming lyrics.
- **Insert "Clear Screen" at Optimal Positions...**: Automatically adds screen-clear events to reduce clutter.
- **Insert Solid Block**: Allows to add a rectangle that can be synchronized and act as a placeholder for intrumental part
- **Text Tools**
  - **Convert lyrics to UPPERCASE**: Changes all lyrics to uppercase.
  - **Convert lyrics to lowercase**: Changes all lyrics to lowercase.
  - **Convert lyrics to Title Case**: Capitalizes the first letter of each word.
  - **Convert lyrics to Sentence Case**: Capitalizes the first letter of each sentence.
  - **Remove empty lines**: Deletes blank lines from the lyrics.
  - **Remove punctuation from the end of lines**: Cleans up trailing punctuation.
- **[Text Snippets](https://docs.powerkaraoke.com/books/ai-karaoke-video-creator-user-manual/page/text-snippets)...**: Manages reusable text fragments for faster editing.