Restore all methods in   | Menu option  | 
an application   | ensure the application’s hierarchy is expanded (that is, ... does not follow the application name) and select: Applications > Restore Application...   | 
applications and its subapplications  | ensure the application’s hierarchy is collapsed (that is, ... follows the application name) and select: Applications > Restore Application...  | 
a class   | Classes > Restore > Class...  | 
a class hierarchy   | Classes > Restore > Class Hierarchy...  | 
methods   | Methods > Ignore/Restore  | 
all implementors of a method   | Methods > Restore All Implementors...  |