Make Snapshot
Makes a snapshot (backup copy) of the currently selected File or directory. Each snapshot is assigned a Tag (Label).
Later on, you can recall those backed up files or do a file diff, directory diff against your backed up versions.
Files are backed up in [anyjuserhome]/snapshots (userhome default unix: '$home$/anyj' win32: [anyjinstalldir]/anyj/).
Note that Find/Replace and Refactoring features internally make use of snapshots to back up files before they get modified by
a refactoring operation.