Hi@sirrona
Apologies for the delay in responding to this question - I'm not sure whether you've found a way to do this yet.(If you have, it'd be great to know what you ended up doing)
My suggestion would be to have the directory watch trigger a workspace that would read in all of the files in the dated folder (Directory and File Pathnames Reader) and have some logic in the workspace to see if all of the folders you need are present.If they are, then you could start the process that you need when all subfolders are present.