Keyboard shortcuts

• Undo: Cmd + Z on Mac or Ctrl + Z on Windows.
• Redo: Cmd + Shift + Z on Mac or Ctrl + Y / Ctrl + Shift + Z on Windows.

You can use Undo and Redo in:

• Projects: Gantt chart, Board, List, Calendar, and Workload views.
• Portfolios: Gantt chart, List, and Workload views.
• My Tasks.
• Resource Workload.

What changes can you undo?
Undo and Redo cover many common task-management actions, including:

• editing standard and custom fields;
• adding or removing task dependencies;
• editing task descriptions and deadlines;
• moving items with drag-and-drop;
• bulk task changes;
• creating and deleting tasks and milestones;
• converting tasks into milestones.

When does the Undo history reset?
As GanttPRO supports real-time collaboration, the history may reset when other changes affect the same data. This can happen, for example, if:

• another user overwrites your latest change;
• auto-scheduling updates it;
• you leave the Project, Portfolio, My Tasks, or Resource Workload page;
• you refresh the browser or log out;
• project settings, user permissions, or resources are changed.

This helps prevent conflicts between outdated and current project data.