Check if file is locked
Options
-  transform name: the transform name, unique in a pipeline 
-  Filename field: the name of the input field that will contain the names of the files during execution. 
-  Result fieldname: the name of the Boolean output field that will contain true or false depending on whether or not the file is locked or not. 
-  Add filename to result: check this if you want to add the checked file-names to the list of files in the pipelines result.