How to use * when selecting files with File Location Object from FTP?

I have several files on an FTP site, with names such as:

• B1.DAILY.FILE.TESTJOB.TXT
• B2.DAILY.FILE.TESTJOB.TXT
• B3.FILE.DATA.TESTJOB.TXT

Normally I would be able to use a filepath such as "B*.TESTJOB.TXT" and read the files correctly (for example, if it was reading text files from a local file directory).

My test data was more like "B123.DAILY.FILE.TESTJOB.*" which correctly read multiple files. as the only variation was at the end of the file.

However, when using the File System Location object I am not sure how to specify a wildcard not at the end of a path. The B*.TESTJOB.TXT filter does not work. I could modify my job to take a single filename and run multiple times for all my files, but this feels suboptimal.