User interface > Transformation of groups of files > Transformation manager > Roll back
If the project was improved, you can repeat the transformation of the same source files to the same target files. You can copy back the backup files before by Roll back, if the original files were overwritten, .
Attention! If the source files were overwritten, and no roll back was made before a second transformation, the backup himself will be overwritten by the results of the first transformation. It is always more save to choose a target directory different from the source directory.