You can unlink a Child Stand Alone trouble ticket from its Parent trouble ticket from the Edit Stand Alone Trouble Ticket window:
To unlink a Child Stand Alone trouble ticket from its Parent trouble ticket:
From either the Stand Alone Trouble Tickets window or the trouble ticket Search Results window, right-click on the Child Stand Alone trouble ticket and select View (if Child trouble ticket is closed) or Edit (if Child trouble ticket is open).
Click the Actions button in the bottom left-hand corner of the window, and select Unlink Parent Trouble.
The Child Stand Alone trouble ticket is unlinked from its Parent trouble ticket and converted back to a basic Stand Alone trouble ticket (not a Child or a Parent). The Parent Trouble field is cleared in the Edit Stand Alone Trouble Ticket window.
Click Save to close the Edit Stand Alone Trouble Ticket window and remove the Child status from the Stand Alone trouble ticket.