This simple addon enlarges the Raid Information frame allowing you to see more of your raid lockouts and adds a checkbox next to each lockout. Checking the box will cause this addon to automatically extend the lockout every time you login.
This can be used to save an old raid ID that you are working on for an anchievement or extend a 5-man heroic lockout to try to make it less likely that it will be chosen as your random daily.
A configuration page allows you to automatically extend new lockouts of a specific type without having to check them individually.