You can reopen tasks and choose to reestablish the predecessor and successor relationships.
The Confirmation dialog box is displayed.
Designate predecessor tasks. Choose one:
If there are predecessors, then you can choose this option: Re-establish predecessor relationships - Tasks will open in original order.
Ignore predecessor relationships - All tasks will re-open immediately.
Designate successor tasks:
Select Re-Open Successor Tasks. The successor list is displayed.
Select the successor tasks.