RegExp - Rename as partial parent name

Alternatively, you can use my Dynamic Renamer with the command:

-sn -/.*/{parent2} ({parent1}) - Filelist.ifl/ -/\[\d+\]\s*//g

This does the following:

  1. removes the suffix
    -sn

  2. replaces the entire filename with your desired file name, appending the parent dirs like you want
    -/.*/{parent2} ({parent1}) - Filelist.ifl/

  3. removes the bracketed digits including the brackets
    -/[\d+]\s*//g