The Gantt control supports the following keyboard shortcuts to perform various actions.
Alt + j: Focuses the Gantt control.
Home: Selects the first row.
End: Selects the last row.
F2: Edits the focused cell of the selected row.
Enter: Saves the edited cell.
Delete: Deletes the selected row.
Ctrl + Down Arrow: Expands all the parent tasks.
Ctrl + Up Arrow: Collapses all the parent tasks.
Left Arrow: Collapses the selected parent task.
Right Arrow: Expands the selected parent task.