World Builder: Scripts: Enhancement: Create a subfolder system for comfortable structuring

[toirehantaa]

Right now it is only possible to create a depth of 1 with subfolders.

This makes it hard to keep track of ones' own scripts and structures with in bigger projects.
Making greater depths like this possible would be helpful:

PlayerFolder
->Subfolder1
      ->Subfolder 2
->Subfolder 1
->Subfolder 1
      ->Subfolder 2
            ->Subfolder 3

[AdrianeYves]

A third or fourth layer would be cool