Ftp file name search

I have all my films on a Synology server on my home network. This has been set up as a UPnP device and Directory Opus 10 can see all the files. Using Directory Opus 10 how can I do a search for a specific film folder on the server , i.e. folder name? Thanks

Is it UPnP or FTP? The two are quite different.

Which branch is it under in the folder tree?

Does the Search Field at the top-right of Opus work for it? If not, does the similar field in Explorer work for it?

(There's also Tools -> Find Panel in Opus, which uses a different type of searching.)