Process folders rather than files?

[Rogier]

The Process Files step can be used to process a bunch of files within some folder.
Can I somehow also use this step to process a bunch of folders within some folder?

E.g. if I have the following folder & file structure:

C:\
 |
 +- MyPath\
     |
     +- Foo\
     |   |
     |   +- Hello.txt
     |
     +- Bar\
     |   |
     |   +- Dummy.mp3
     |   |
     |   +- SomeSubDir\
     |       |
     |       +- Example.gif
     |
     +- Random.jpg

Can I somehow use the Profess File step (or some other step) at C:\MyPath\ to apply a group of actions using 'Foo' and 'Bar'? And optionally also 'Bar\SomeSubDir' if I enable some 'recursive' option?