Filling empty strings with previous row's value

Hi, I am also interest in this topic. I’ve used “Missing Value” in certain circustances with an good result. But right now I am trying to clean a file where empty cells are fill with character “-”. I’ve tried to replace “-” for nothing and then, use “Missing Values” but it isn’t working. After the replacement don’t detect cells as a missing value so the step doesn’t work.

Has someone other function to fill down empty cells or cells with a special character?