2 UN_DO Keyword: un_do, coordinates File: un_do.txt Last modified: 24-feb-2007 3 UN_DO UN_DO swicthes forward and backwards between the current and backup coordinate sets allowing instant "undos" of geometrical changes. Before activation of each change coordinates are backuped. For going several steps backword either the file "input.cop" has to be edited for ecovery. In most cases restore ("REST_FIL") coordinates from the "save files" will do. Shortcut is "u".