Hi @JeroenKrah, thank you for posting this.
If I am understanding correctly you say "So, I used the Condition and put in the CASE = yes the filename that I want. Next is adding the file to the Google drive. But all the files, including the wanted file are ending up in the CASE = no box."
I am understanding that you only want the one file that updates every 5 hours to move to google drive, not the rest?
I have had a look and have created a condition that will get just 1 file from the FTP folder.
Here is an explation firstly as to why it has been handles in the way:
FTP returns the file name in base 64 format, so it needs converting before the real file name will match.
Please see below on how I have done this:

You will see below the new output of the file when I have used base64ToString() to convert the file name.
Without the conversion, any condition you will write will try and match "ZmlsZTEyMTM0NTYucGRm" (in my example) as the file name.
With the above set up just one file is targetetd and it moves to google drive. I am not sure how Google drive will handle overwriting the file, in my testiong it errored if file name existed already but at least now you can maybe write a condition that is more likely to match on file name.
Thanks, Alan