Automated multimedia content editing

A method is used for editing multimedia content comprising a demonstration of actions performed in utilising a computer application. The computer application has an undo action history and an action being removed from the undo history is detected. An end marker is added 406 to a timeline associated with the multimedia content at a time corresponding to such detection and a start marker is added 408 to the timeline at a time corresponding to the action which was removed from the undo history. A portion of the multimedia content corresponding to that located between the start marker and the end marker is removed from the demonstration. The undo history may include a timestamp associated with each action in the history. The undo history may be accessed externally to the application or thorough an application programming interface or by adding a plugin to the computer application.