You can edit multiple tasks either in the dialog box or detail view pane.
To edit multiple tasks in the dialog box
To edit multiple tasks in detail view pane
In multi-edit mode you cannot edit all the properties available in single-edit mode.
If the values of certain properties are not the same, in multi-edit mode these properties are marked as Different Values.
Note If you change a property marked as Different Values, all selected tasks will have the same value.
The properties which values have been changed in multi-edit mode are displayed in bold type.
Note If the changes have not been saved yet, you can revert the changed properties to their original values.