Latest from HEAD (Ctrl (Command on OS X) + Alt + H) - Performs a 3-way diff operation between the selected file and the HEAD revision from the repository and displays the result in the Compare view. The common ancestor of the 3-way diff operation is the BASE version of the file from the local working copy.
BASE revision (Ctrl (Command on OS X) + Alt + C) - Compares the working copy file with the BASE revision file (the so-called pristine copy).
Revision (Ctrl (Command on OS X) + Alt + R) - Shows the History view containing the log history of that resource.
Each other - Compares two selected files with each other.
Latest from HEAD - Replaces the selected resources with their versions from the HEAD revision of the repository.
BASE revision - Replace the selected resources with their versions from the pristine copy (the BASE revision).
For the Replace with BASE revision action, the resources being unversioned or added have no BASE revision, and thus cannot be replaced. However, they will be deleted if the action is invoked on a parent folder. The action will never work for missing folders or for obstructing files (folders being obstructed by a file), since you cannot recover a tree of folders
The URL used in the external definition format can be relative. You can specify the repository URL that the external folder points to by using one of the following relative formats:
Scan for locks... (Ctrl (Command on OS X) + L) - Contacts the repository and recursively obtains the list of locks for the selected resources. A dialog containing the locked files and the lock description will be displayed. This is only active for resources under version control. For more details see Scanning for locks.
Lock...
(Ctrl (Command on OS X) + K) - Allows you
to lock certain files that need exclusive access. You can write a comment
describing the reason for the lock and you can also force (steal) the
lock. This action is active only on files under version control.
For more details on the use of this action see
Locking a file.
Unlock...
(Ctrl (Command on OS X) + Alt + K) -
Releases the exclusive access to a file from the repository. You can also choose
to unlock it by force (break the lock).