Copy specific options
- Transfer the file rights
- Keep the file date
- Block size (into the future, this options can be deleted to be replaced by a auto-detection)
- Auto-start the transfer, warning: Some interface without options force the transfer start to prevent blocking
- The folder error and collision action
- Check if destination folder exists: it's during the folder listing, it check if the folder exists to ask if it need be merged, else it merge it automatically.