The status of a checkout can be changed from reserved to unreserved or from unreserved to reserved. You cannot change an unreserved checkout to a reserved checkout if the version is checked out as reserved in another view. To change the status of a checkout, you can use the cleartool reserve or unreserve command in a command shell, or, on a Windows system only, you can also use Rational® ClearCase® Explorer or Windows Explorer.
For information about changing the status for checkouts in other views, and for more information about these commands, see the reserve or unreserve reference pages in the IBM Rational ClearCase Command Reference.