From the Delta Browser, the Unset command from the Delta menu enables you to unset the delta that is currently set. When there is no delta set, no methods can be checked in or out.
The Unset command is enabled only when you select the delta that is the current delta.
To unset a delta
In the Delta Browser, select the current delta.
Select the Unset command from the Delta menu.
When you unset the current delta, any methods that are checked out are checked in when the delta is unset. The gray arrow is then removed from the left of that delta in the Delta Browser.
No methods can be checked out until you set another delta as the current delta.